方波

Methods The sensory root of semilunar ganglion of trigeminal nerve in the foramen ovale was punctured by needle, which connected with electrode of radiofrequency thermocoagulation instrument.

用穿刺针经前路法穿刺，到达卵圆孔内三叉神经半月节感觉根，连接射频温控热凝仪及相配套电极，先进行方波定位刺激，确认无误后，一次性快速加热至 88℃左右，在感觉根的 2～ 3个断面上热凝。

Fundamental frequency is either equal to the switching frequency of the inverter(square-wave and PWM inverter)or ist simple fraction(1/3,1/5,and so) such as in Multiple PWM or sine PWM inverters.

基本频率是逆变器在相等的开关频率，或者方波是简单的分数(1 / 3，因此，1 / 5)，如在多个PWM脉宽调制逆变器或正弦量。

Its basic function is to measure sinusoidal signal, square wave signals and a variety of other changes in physical quantities per unit time.

它的基本功能是测量正弦信号，方波信号及其他各种单位时间内变化的物理量。

Wasn't said, I heard square wave from the question.

正如没有必要说，我听说方波的问题。

What is the frequency of the square wave?

最佳答案：什么是频率的方波？

This kind of motor discussed in this paper also a brushless DC square wave motor.

本文提到的电机是方波无刷直流电机，所以也涉及到了其PWM控制器的设计。

This generates a square wave signal at the output as shown in Figure 6.26.

这产生一个方波信号，在输出显示在图6.26条。

This is a simple square wave signal generator single-chip realization of the process, single-chip microcomputer for beginners!

详细说明：这是一个简单的单片机实现方波信号产生的程序，适合单片机初学者！

The ultrasonic cleaners is to plus square wave signal of 50% on the matching circuit.

通常的超声波清洗机是在匹配电路上加占空比为50％的交流方波信号。

So the signal must be magnified and plastics for square wave to notes.

因此信号必须放大并以塑胶为方波债券。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。