方波

Next, the differentiating circuit that makes from the C5 of classics of square wave signal of the 7 output citing a base of IC1b, R10, make the pointed pulse that losing alternate with will be become after differential processing.

接下来，从IC1b的7引脚输出的方波信号经C5、R10组成的微分电路，进行微分措置后将成为正负相间的尖脉冲。

Diphenylamine contents in single base propellants were determined by means of a single-sweep-square-wave polarography after the treatment of nitrosation of DPA.

将单基发射药亚硝化后用单扫描方波极谱法测定溶液中的二苯胺含量，用丙酮溶解单基发射药试样，使用组成与待测样品相同的单基标准样品作工作曲线。

Objective In order to develop an electrotherapy apparatus with 50 kHz square wave pulse and to set up a new type of drug-iontophoresis system.

目的 研制50 kHz方波脉冲电疗仪，以建立新型药物离子导入系统。

The results show that the potential waveforms are the exponential function of time .

在R-C模拟体系中，研究了方波脉冲电流作用下电位响应波形的基本特征。

In order to take account of the effect of magnet field harmonic,the phase winding loop model is usually used in square wave propulsive motor.

为了充分考虑磁场各次谐波的作用，方波推进电动机一般采用相绕组回路的数学模型，模型中绕组参数的测量和计算较为复杂，其中带阻尼绕组的多相永磁同步推进电动机的绕组电感测量和计算尤为困难。

The fly-back topology is adopted for DC/DC boost stage for simplicity. Moreover, full-bridge topology is used for DC/AC stage to give a low frequency square wave power to HID lamp avoid the acoustic resonance.

直流/直流升压级采用电路简单之返驰式转换器；直流/交流级则利用全桥式转换器以提供低频方波电能并藉此避免音频共振。

As an example of the technique, let's compute the Fourier series which corresponds to a square wave.

作为这种方法的一个例子，让我们计算一个方波的傅里叶级数。

The calculation results show that the populations between the two states are Rabi oscillation in the absence of the rf field, square-wave oscillations in the presence of the slow rf field, and stair steps oscillations in the presence of the intermediate rf field.

计算结果表明：当调频场的频率比较低时，从一个态到另一个态的跃迁几率随时间演化为方波振荡；当调频场为中频时，跃迁几率为阶梯型振荡；在高频调频场中出现调频场的多光子共振。

To overcome the bulky , inflexibility of traditional analog d ither system,a new solution for ring laser gyroˉ scope was designed with field programmable gate array.T he digital dither control method was given and dither characteristics were analyzed by square wave driving signal s.

针对传统机抖激光陀螺模拟偏频系统体积大、难于控制的缺点，设计了一种基于 FPGA的全数字抖动控制方案，提出了数字抖动控制原理，分析了数字方波驱动信号的性能，实现了伪随机噪声的生成和注入。

Because of the relay, the input during this limit cycle is a square wave with a period related to the system dynamics.

由于继电器的存在，在这个极限循环中的输入将呈现一段与系统动态学相关的方波形式。

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。