低频

This instrument has two advanced and key functions,spired-type massage and vibration-type losing-weigh.

高低气血通 集结气血循环机和低治疗仪两大功效优势。

Provides a 6dB-per-octave rolloff filter at 115Hz.

提供一个115赫兹时每八度6分贝的低上移滤波。

The design finished includes a bypassable low noise amplifier (LNA) and quadrature downconverter integrated on chip.

已经完成的设计包括一个片上集成的可直通式的低噪声放大（LNA）和一个片上集成的低转换式的。

Abstract： In many power electronic applications ferrite cores of magnetic compon ents are biased with a DC or low-frequency premagnetization.

摘 要： 在电力电子技术中应用的铁氧体铁心磁性元件，铁心中往往存在直流或低交流预磁化的情况。

For general exploringobjects requirement, narrow pulse signal with tens millimicro second to millimicrosecond has the frequency spectrum from DC to thousands MHz.

按照标探测的一般需要,通常采用纳秒到十纳秒量级的电磁探测窄脉冲,信号谱具有从直流低直到千兆赫兹的宽带。

The high pass filter cuts the lowest frequencies. This cab be useful in rooms where low frecuencies are amplified and tend to be "boomy".

高通滤波可以去除最低率，低被放大，容易形成嗡嗡声的房间，非常有帮助。

The frequency of HF is determined by the ratio of respiratory frequency and heart rate.The results also indicated that nonadditivity of heart rate modulation by sympathetic an...

高峰的率是呼吸率与心率之比，低和极低可能与交感和副交感神经调节心率的非可加性有关。

This article is introductions of subfebrile diagnosic and pulse magnetic field therapy for malignant tumour with a Humanbody Energy Detector and a Pulse Magnetic Field Therapy Instrument.

用人体热能辐射测试仪早期微热诊断恶性肿瘤，用超低脉冲磁场癌症治疗仪抑制癌瘤和提高免疫细胞功能。

The low frequency acoustic design for an automobile body structure is very important to improve the carborne acoustic comfortability and to enhance the competitiveness for the car products in market.

车身结构低声学设计以提高车辆乘坐的声学舒适性为的，于增强汽车产品的市场竞争能力具有十分重要的意义。