低频电流脉冲具有良好的镇痛作用。
The low frequency electrical impulses has a significant effect in pain control.
目的：观察低频电流结合穴位按摩对剖宫产产妇术后排气的效果。
Objective: to observe the effects of low frequency electric stimulation combined with point massage to accelerate intestinal function recovery after caesarean operation.
交叉线路的设计包含了一系列的带有高音扩音器的电容器，这是一个确保阻止低频电流进入高音扩音器的有效方法。
A crossover design contains a capacitor in series with the tweeter. This is an effective way of ensuring low frequency currents don't reach the tweeter.
本发明的催眠仪可辅助增加一组对指尖的振动按摩器和一组对失眠穴及指尖施加低频电流的电疗电路，以提高催眠效果。
One finger tip vibrating masseur and one low-frequency current treating circuit to act on the insomnia acupoints and finger tip may be increased to raise the hypnogenesis effect.
低频电磁场电流测控系统包括电流测试和输出控制两个部分，由软件和硬件相互配合组成一个完整的计算机控制系统。
The current measurement and control system in a Low-frequency Magnetic Field is a comprehensive system of hardware and software, including two parts: current measurement and computer control.
分析了变换器低频电感电流的次谐波振荡问题，并提出了抑制措施，实验验证了理论分析的正确性。
Especially, the sub-harmonic oscillation of the low frequency inductor current is analyzed and the method to solve this problem is proposed.
它将有关低频脉冲信号对中频调幅后，利用被放大的调幅波电流对人体进行治疗。
It will give patients treatment by means of the amplified amplitude modulating wave current that can be obtained form medium frequency amplitude modulated by the low frequency pulse signal.
负载侧输出为低频方波电流，有效克服了MH灯声共振现象。
The output current is operated at low-frequency square to prevent the acoustic resonance for MH lamps.
仪器中设计了大电流低频交流恒流源，高灵敏度前置放大器，并用单片机软件代替了大量电子线路的功能。
We designed a large current AC constant current source of low frequency, and an electronic preamplifier with high sensitivity for the use of the instrument.
研究和分析了它们在低频大电流脉冲注入下的Pp—Ip特性和直流注入下的光谱特性。
The PP-IP characteristics at low frequency high pulse current and the emission spectra at direct current have been investigated and analyzed.
当CP脉冲为低频时，各相绕组平均电压和平均电流较低，电动机磁场储能较少，一定程度上克服了共振现象。
When the frequency of CP pulses is lower, average voltages and currents of windings will decrease and magnetic field energy of motor is very little so as not to produce resonance.
针对上升时间为微秒量级且含有低频分量的RSD开关电流，提出了调控相差的外积分测量方案。
Basis on the out-integrating measurement, a phase error control method is proposed to measure the RSD switching current which has low frequency components and nanosecond rising time.
对于低频率电流（约15，000周秒以内），置有一个叫作磁路的铁心。
For low-frequency currents(up to about 15, 000 cycles per second)an iron core, called a magnetic circuit; is placed.
其降阶指把电流环时间常数调整到尽量小，低频信号段可等效为普通比例环节。
The intension of reduce rank is that the time constant of current-ring is regulated to the best of minimum, and low frequency signal is equated to common proportional component.
主回路采用由18个晶闸管组成的三相零式电路，并辅以晶闸管的保护电路，通过控制可以得到低频正弦波的电压（电流）输出；
The main circuit is consisted of 18 thyristors circuit and protection circuit. With the help of control subsystem, it can get the output of low frequency voltage (current) with the shape of sine wave;
最后，对变频调速电机的实际低频与中频电压、电流信号进行了分析，得出了正确结果，验证了该方法的有效性。
In the final, process the actual test low frequency and middle-frequency electric voltage and current data, attains the accurate result and verifies the accuracy of the method.
利用两种能够引导甚低频电磁波的导管模式，求得哨声导管中磁场和电流的分布。
By using two kinds of model of ducts in which the VLF electromagnetic waves are guided, we obtain the distributions of magnetic field and current in the whistler duets.
通过控制逆变器输入平均电流调节负载功率，简化了电路设计；通过单片机发出高频加低频调制的半桥驱动信号，消除调光过程中的电弧不稳定现象。
A easier and low-cost power control method is proposed in this paper, based on the regulation of the average input current of the inverter.
本文采用循环伏安法和恒电流法在惰性电极与304不锈钢低频载波氧化膜上合成了聚对苯撑与聚噻吩膜。
In this article, polythiophene and polyparaphenylene films were prepared both on inert electrodes and 304 stainless steel by electrochemical methods.
本文采用循环伏安法和恒电流法在惰性电极与304不锈钢低频载波氧化膜上合成了聚对苯撑与聚噻吩膜。
In this article, polythiophene and polyparaphenylene films were prepared both on inert electrodes and 304 stainless steel by electrochemical methods.
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