The compass is an instrument of navigation.

罗盘是仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵。

The ship was navigated by the North Star.

那只船靠北极星来。

The airplane has a sophisticated electronic guidance system.

这架飞机有一套尖端的电子统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞机由雷达返了。

The great importance of the quality of equipment for navigation should never be neglected.

备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞机到另一机场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（的）理论，最初是由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放机- morpher 1.0有一些限制，功能和访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF列船用柴油发电机组适用于船舶、电力、照明、通讯、、充电等备用电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明星基统（GPS、GLONASS）不能作为唯一的、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联统的特点,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接估计法3种捷联统常用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了一种用于测量平台式惯性统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁外科手术统是一种利用外界磁场引药物或其它治疗手段在患者体内完成复杂外科手术的一种全新的治疗备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采用单片机和数字滤波技术对一种港口双曲线无线电统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是导航仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵导航。

The ship was navigated by the North Star.

那只船靠北极星来导航。

The airplane has a sophisticated electronic guidance system.

这架飞有套尖端的电子导航系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞由雷达导航返航了。

The great importance of the quality of equipment for navigation should never be neglected.

导航设备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞导航到另场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（导航的）理论，最初是由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放- morpher 1.0有些限制，功能和导航访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船用柴油发电组适用于船舶、电力、照明、通讯、导航、充电等设备用电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评表明星基系统（GPS、GLONASS）不能作为唯的导航、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联导航系统的特点,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接法3种捷联导航系统常用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了种用于测量平台式惯性导航系统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁导航外科手术系统是种利用外界磁场引导药物或其它治疗手段在患者体内完成复杂外科手术的种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、导航工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采用单片和数字滤波技术对种港口双曲线无线电导航系统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手舵。

The ship was navigated by the North Star.

那只船靠北极星来。

The airplane has a sophisticated electronic guidance system.

这架飞机有套尖端的电子系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞机由雷达返了。

The great importance of the quality of equipment for navigation should never be neglected.

设备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞机到另机场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使）日长石（的）理论，最初由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放机- morpher 1.0有些限制，功能和访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船柴油发电机组适于船舶、电力、照明、通讯、、充电等设备电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明星基系统（GPS、GLONASS）不能作为唯的、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联系统的特点,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接估计法3捷联系统常初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了于测量平台式惯性系统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁外科手术系统利外界磁场引药物或其它治疗手段在患者体内完成复杂外科手术的全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运微创反射阵列、工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采单片机和数字滤波技术对港口双曲线无线电系统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是导航仪器。

A sailor uses the rudder to make the ship go in the correct direction.

手舵导航。

The ship was navigated by the North Star.

那只船靠北极星来导航。

The airplane has a sophisticated electronic guidance system.

这架飞机有一套尖端的电子导航系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞机由雷达导航返航了。

The great importance of the quality of equipment for navigation should never be neglected.

导航设备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞机导航到另一机场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使）日长石（导航的）理论，最初是由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放机- morpher 1.0有一些限制，功能和导航访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船柴油发电机组适于船舶、电力、照明、通讯、导航、充电等设备电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明星基系统（GPS、GLONASS）不能作为唯一的导航、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联导航系统的,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接估计法3种捷联导航系统常初始对准方法的。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

绍了一种于测量平台式惯性导航系统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁导航外科手术系统是一种利外界磁场引导药物或其它治疗手段在患者体内完成复杂外科手术的一种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运微创反射阵列、导航工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采单片机和数字滤波技术对一种港口双曲线无线电导航系统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是导航仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵导航。

The ship was navigated by the North Star.

那只船靠北极星来导航。

The airplane has a sophisticated electronic guidance system.

这架飞有一套尖端的子导航系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞由雷达导航返航了。

The great importance of the quality of equipment for navigation should never be neglected.

导航设备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞导航到另一场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（导航的）理论，最初是由丹麦考古学家托德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

本版本的影音DVD播放- morpher 1.0有一些限制，功能和导航访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船用柴油发适用于船舶、力、照明、通讯、导航、充等设备用。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明星系统（GPS、GLONASS）不能作为唯一的导航、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联导航系统的特点,从理论上分析了卡曼滤波法、解析陀螺罗经法和间接估计法3种捷联导航系统常用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了一种用于测量平台式惯性导航系统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁导航外科手术系统是一种利用外界磁场引导药物或其它治疗手段在患者体内完成复杂外科手术的一种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、导航工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采用单片和数字滤波技术对一种港口双曲线无线导航系统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是导航仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵导航。

The ship was navigated by the North Star.

那只船靠北导航。

The airplane has a sophisticated electronic guidance system.

这架飞机有一套尖端的电子导航。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度差, 飞机由雷达导航返航了。

The great importance of the quality of equipment for navigation should never be neglected.

导航设备的质量为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞机导航到另一机场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（导航的）理论，最初是由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放机- morpher 1.0有一些限制，功能和导航访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF列船用柴油发电机组适用于船舶、电力、照明、通讯、导航、充电等设备用电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明基（GPS、GLONASS）不能作为唯一的导航、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联导航的特点,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接估计法3种捷联导航用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了一种用于测量平台式惯性导航陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁导航外科手术是一种利用外界磁场引导药物或其它治疗手段在患者体内完成复杂外科手术的一种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、导航工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采用单片机和数字滤波技术对一种港口双曲线无线电导航的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵。

The ship was navigated by the North Star.

那只船靠北极星来。

The airplane has a sophisticated electronic guidance system.

这架飞机有一套尖端的电子系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞机由雷达返了。

The great importance of the quality of equipment for navigation should never be neglected.

设备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞机到另一机场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（的）理论，最初是由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放机- morpher 1.0有一些限制，功能和访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船用柴油发电机组适用于船舶、电力、照明、通讯、、充电等设备用电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明星基系统（GPS、GLONASS）不能作为唯一的、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联系统的特点,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接估计法3种捷联系统常用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了一种用于测量平台式惯系统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁外科手术系统是一种利用外界磁场引药物或其它治疗手段在患者体内完成复杂外科手术的一种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采用单片机和数字滤波技术对一种港口双曲线无线电系统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是导航仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵导航。

The ship was navigated by the North Star.

那只船靠北星来导航。

The airplane has a sophisticated electronic guidance system.

这架飞机有一套尖端的电子导航系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见, 飞机由雷达导航返航。

The great importance of the quality of equipment for navigation should never be neglected.

导航设备的质量为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞机导航到另一机场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（导航的）理论，最初是由丹麦考古学家托基德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放机- morpher 1.0有一些限制，功能和导航访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船用柴油发电机组适用于船舶、电力、照明、通讯、导航、充电等设备用电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评估表明星基系统（GPS、GLONASS）不能作为唯一的导航、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联导航系统的特点,从理论上分析曼滤波法、解析陀螺罗经法和间接估计法3种捷联导航系统常用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍一种用于测量平台式惯性导航系统陀螺安装误的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁导航外科手术系统是一种利用外界磁场引导药物或其它治疗手段在患者体内完成复杂外科手术的一种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、导航工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出采用单片机和数字滤波技术对一种港口双曲线无线电导航系统的相位信号进行滤波处理和巷识别的方案.

The compass is an instrument of navigation.

罗盘是导航仪器。

A sailor uses the rudder to make the ship go in the correct direction.

水手用舵导航。

The ship was navigated by the North Star.

那只船靠北极星来导航。

The airplane has a sophisticated electronic guidance system.

这架飞有套尖端的电子导航系统。

The pilot homed in by means of radar, despite the poor visibility.

尽管能见度极差, 飞由雷达导航返航了。

The great importance of the quality of equipment for navigation should never be neglected.

导航设备的质量极为重要, 不容忽视。

They diverted the plane to another airport because of the weather.

由于天气原因, 他们把飞导航到另场。

The sunstone theory was first proposed in 1966 by the Danish archaeologist Thorkild Ramskou.

关于（使用）日长石（导航的）理论，最初是由丹麦考古学家托基尔德·拉姆斯库于1966年提出。

The Basic version of AV DVD Player-Morpher 1.0 has some limit on feature and navigation access.

基本版本的影音DVD播放- morpher 1.0有些限制，功能和导航访问。

CCF SERIES of Diesel generator-set for ship is suitable for electrize with shipping. lightting, communicating, ship-leading, charging etc, equipment.

CCF系列船用柴油发电组适用于船舶、电力、照明、通讯、导航、充电等设备用电。

The risk assessment study indicates that the satellite system can't be considered as the sole-means for the nations radionavigation system.

风险评表明星基系统（GPS、GLONASS）不能作为唯的导航、定位、定时手段。

Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.

针对激光陀螺捷联导航系统的特点,从理论上分析了卡尔曼滤波法、解析陀螺罗经法和间接法3种捷联导航系统常用初始对准方法的特点。

A technique for estimation of gyro installation error s in gimbaled INS was presented based on the oscillation around gyro input axis.

介绍了种用于测量平台式惯性导航系统陀螺安装误差的陀螺轴扰动技术.

The Magnetic Stereotaxis System(MSS) is a unique medical device designed to deliver drugs and other therapies directly into the bodies to perform complicated surgical operations.

磁导航外科手术系统是种利用外界磁场引导药物或其它治疗手段在患者体内完成复杂外科手术的种全新的治疗设备。

A minimally invasive reflective array, tool navigator, and a registered burr were used for localization and deroofing of the lesion, followed by curettage and highspeed burring of the cavity.

运用微创反射阵列、导航工具和校正钻孔器进行定位，然后肿瘤去顶、刮除、高速磨光病灶腔。

Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .

本文提出了采用单片和数字滤波技术对种港口双曲线无线电导航系统的相位信号进行滤波处理和巷识别的方案.