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The author mainly discussed the basic principle of commutated circuit and filter circuit.

对电压和电流的控制采用了集成芯片，这相比于用晶体管组成的稳压电路，大大简化了设计的复杂性。

Active filter circuit is made of active device and RC network filtering circuit.

有源滤波电路是用有源器件与RC网络组成的滤波电路。

In addition, the main part of the rectifier and filter circuit, power conversion and other sectors circuit is analyzed and given the parameters and options.

此外，分析了主电路部分的整流滤波、功率变换等环节，给出了参数计算和选择的方法。

The low pass filter is a seven element circuit based on the circuit and constants described by W3NQN.

低通滤波器是由7个元件组成的电路，它基于由W3NQN所描述的电路与常数。

At this time the circuit is the current path of the firing line from the power circuit components → super.

这时电路中的电流路径是从电源的火线→超组成回路。

The power output can hold fixedness and be changed through changing the output voltage of BUCK circuit with the control of PWM control circuit.

介绍了一种输出功率恒定的功率超声电源，此电源采用PWM方式控制BUCK 斩波电路，实现恒功率输出及可调。

The hot gas flow characteristics during the short circuit interruption in arcing chamber of SF_6 circuit breaker is calculated by using FLIC method.

1引言 SF。气体介质强度恢复特性的研究是从80年代初开始的，此后一直为各国学者所关注。

By using FluidSIM software to simulate the operation of hydraulic circuit in fluid drive praxis teaching, students can clearly understand the various components in the loop phase of the exercise process, deepen their understanding of circuit components and understanding of the principles.

在液压传动实践教学中应用FluidSIM软件对回路进行模拟运行和检验，使学生能够清晰地了解各元件在回路各个运动阶段的工作过程，加深对元件和回路原理的理解。

Two high-voltage circuits have been designed: voltage doubling rectifying circuit and fly-back switching high-voltage power supply circuit.

设计了两种高压产生电路：倍压整流电路和反激式开关电源电路。

The applications of LTCC technology in power module and transformer fields are briefly reviewed, then a case of LTCC mix-integrated power module is mentioned and its design and process technology are researched. In this paper, we firstly design a 25W fly-back circuit topology, and debug the circuit in PCB layout independently.

论文从LTCC技术的应用出发，介绍了LTCC技术在模块电源和变压器制造上的应用现状之后，提出了一个基于LTCC技术混合集成电源的方案，并展开对这个方案的设计和工艺研究。

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。