He bought a manual of car repairs.

买了一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压维修工作。

The upkeep of a yacht is very expensive.

游艇维修保养费是很昂贵。

He works as a panel beater in a local garage.

在当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱来说点实际吧，谁来付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化维修复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人卑鄙汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道设施已经过分利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场维修阀门阀座，不用担心由于现场维修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身维修保证，有力地支持了工作。

He learnt tractor maintenance.

学会了拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀门需要维修，则在阀门两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱来说点实际吧,谁来付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障设备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义宅邸是房主送给城市, 现在由地方当局保养维修。

He bought a manual of car repairs.

他买了一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压的维修工作。

The upkeep of a yacht is very expensive.

游艇的维修保养费是很昂贵的。

He works as a panel beater in a local garage.

他在当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际的吧，谁来付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化维修的复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人的卑鄙的汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道的设施已经过分的利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场维修阀门的阀座，不用担心由于现场维修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身维修的保证，有力地支持了他们的工作。

He learnt tractor maintenance.

他学会了拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀门需要维修，则在阀门的两侧对行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际的吧,谁来付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置的工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障的设备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义的宅邸是房主送给城市的, 现在由地方当局保养维修。

He bought a manual of car repairs.

他买了一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压的维修工作。

The upkeep of a yacht is very expensive.

游艇的维修保养费是很昂贵的。

He works as a panel beater in a local garage.

他在当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际的吧，谁来付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化维修的复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人的卑鄙的汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道的设施已经过分的利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场维修阀门的阀座，不用担心由于现场维修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身维修的保证，有力地支持了他们的工作。

He learnt tractor maintenance.

他学会了拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀门需要维修，则在阀门的两侧进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际的吧,谁来付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置的工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障的设备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义的宅邸是房主送给城市的, 现在由地方当局保养维修。

He bought a manual of car repairs.

他买了一本汽车手册。

It must be very costly to keep up a house like this.

这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压的作。

The upkeep of a yacht is very expensive.

游艇的保养费是很昂贵的。

He works as a panel beater in a local garage.

他在当地一家车厂做板金。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际的吧，谁来付费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化的复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人的卑鄙的汽车店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道的设施已经过分的利用，并不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场阀门的阀座，不用担心由于现场设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而，经销者提供了免费终身的保证，有力地支持了他们的作。

He learnt tractor maintenance.

他学会了拖拉机。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀门需要，则在阀门的两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械。（电、管、焊、木、车、铁、建筑人、安装人、铆、起重、混凝土、司机、）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际的吧,谁来付费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----具下箱、具上箱、手推车、作桌、手具组套作车、特殊汽车具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置的作原理及常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障的设备不可以使用，要报告给监护人员准备或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义的宅邸是房主送给城市的, 现在由地方当局保养。

He bought a manual of car repairs.

他买了一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压维修工作。

The upkeep of a yacht is very expensive.

游艇维修保养费是很昂贵。

He works as a panel beater in a local garage.

他在当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际吧，谁来付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回特点在于不可逆止回，配置简化维修复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人卑鄙汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道已经过分利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场维修门座，不用担心由于现场维修备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身维修保证，有力地支持了他们工作。

He learnt tractor maintenance.

他学会了拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个门需要维修，则在门两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际吧,谁来付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义宅邸是房主送给城市, 现在由地方当局保养维修。

He bought a manual of car repairs.

他买了一本修手册。

It must be very costly to keep up a house like this.

修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并修搅拌罐。

Investment is needed to reduce the backlog of repairs.

投资来減轻积压的修工作。

The upkeep of a yacht is very expensive.

游艇的修保养费是很昂贵的。

He works as a panel beater in a local garage.

他在当地一家修厂做板金修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际的吧，谁来付修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化修的复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人的卑鄙的修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道的设施已经过分的利用，并修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场修阀的阀座，不用担心由于现场修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身修的保证，有力地支持了他们的工作。

He learnt tractor maintenance.

他学会了拖拉机修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀修，则在阀的两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际的吧,谁来付修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推、工作桌、手工具组套工作、特殊修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置的工作原理及修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障的设备不可以使用，报告给监护人员准备修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义的宅邸是房主送给城市的, 现在由地方当局保养修。

He bought a manual of car repairs.

他买了一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压维修工作。

The upkeep of a yacht is very expensive.

游艇维修保养费是很昂贵。

He works as a panel beater in a local garage.

他在当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际吧，谁来付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化维修弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道设施已经过分利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场维修阀门阀座，不用担心由于现场维修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身维修保证，有力地支持了他们工作。

He learnt tractor maintenance.

他学会了拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀门需要维修，则在阀门两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际吧,谁来付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障设备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义宅邸是房主送给城市, 现在由地方当局保养维修。

He bought a manual of car repairs.

一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资来減轻积压的维修工作。

The upkeep of a yacht is very expensive.

游艇的维修保养费是很昂贵的。

He works as a panel beater in a local garage.

当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

咱们来说点实际的吧，谁来付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回结构特点于不可逆止回，配置简化维修的复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露一家敲榨老年人的卑鄙的汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道的设施已经过分的利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也允许现场维修门的座，不用担心由于现场维修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供免费终身维修的保证，有力地支持们的工作。

He learnt tractor maintenance.

学会拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个门需要维修，门的两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?咱们来说点实际的吧,谁来付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置的工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障的设备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义的宅邸是房主送给城市的, 现由地方当局保养维修。

He bought a manual of car repairs.

他买了一本汽车维修手册。

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵。

We manufacture and maintain mixer tank for Rinker Materials.

为瑞科尔公司制造并维修搅拌罐。

Investment is needed to reduce the backlog of repairs.

需要投资減轻积压的维修工作。

The upkeep of a yacht is very expensive.

游艇的维修保养费是很昂贵的。

He works as a panel beater in a local garage.

他在当地一家修车厂做板金维修工。

Let’s get down to the nitty-gritty. Who’s going to pay for the renovations?

说点实际的吧，谁付维修费？

Modular check construction featuring nonreversible checks with captured springs for simplified servicing.

模块化止回阀结构特点在于不可逆止回，配置简化维修的复位弹簧。

A special news program exposed underhanded auto repair shops that are ripping off senior citizens.

一个特别新闻节目露了一家敲榨老年人的卑鄙的汽车维修店。

Power lines, telephones and sewage facilities are grossly over utilized and undermaintained.

能源线路，电话，和下水道的设施已经过分的利用，并维修不足。

This feature also permits field repair of the valve seat without fear of misassembly by field mechanics.

这种特征也场维修阀门的阀座，不用担心由于场维修设备不足导致错误装配。

Also, participating dealers back their work with a free lifetime service guarantee.

而且，相关经销者提供了免费终身维修的保证，有力地支持了他的工作。

He learnt tractor maintenance.

他学会了拖拉机维修。

Should a valve need repair, depressurize and drain the system on both sides of the valve.

如果一个阀门需要维修，则在阀门的两侧对系统进行减压和排放。

I am a mechanician.(electrician, Pipelayer,welder, carpenter, turner, blacksmith, builder, erector, riveter,rigger, concrete worker, engine-driver,repair worker).

我是一个机械工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、维修工）。

Let’s get down to the nitty-gritty.

Who’s going to pay for the renovations?说点实际的吧,谁付维修费?

Description: Machan Interational Co.,Ltd ---- Tool trolley,chest,service cart,work bench,tool sets,hand tools,auto tools,auto repair tools.

-----工具下箱、工具上箱、手推车、工作桌、手工具组套工作车、特殊汽车维修工具。

Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌握防化服保养常识，掌握强制送风和空气压缩装置的工作原理及维修常识。

ELCB or GFCI device with trip load of no more than 30 milliamp will be fitted and fully operational.

有故障的设备不可以使用，要报告给监护人员准备维修或者取走不用。

The historic mansion was presented by the owner to the city, and is now kept up by the local authority.

这幢有历史意义的宅邸是房主送给城市的, 在由地方当局保养维修。