和电路

Provided with an infrared automatic positioning protective circuit and an automatic reset circuit, the utility model realizes the automatic positioning protection of the sliding rack of the fluorescent screen and the automatic control of the compressor.

提供红外线自动定位保护电路和自动复位电路，公用运算模式，实现了自动定位保护滑动机架的荧光幕和自动化控制压缩机。

For the band-pass filter, the scattering parameters, including the insertion and return losses, has been calculated by means of electric circuit simulation. In addition, we have also carried out the experimental studies.

我们经由电路模拟来计算带通滤波器的介入和反射损失，此外，我们也完成了实验，且由模拟和量测相近的结果，我们更可确定电路模型的正确性。

Like the transformer coupled circuit, the choke feed in the parafeed circuit allows the output to swing above and below the power supply voltage.

和变压器耦合电路一样，旁馈电路中地扼流圈也能容许输出在高于和低于高压的情况下波动。

I can be independent of the circuit to complete the design development and production of the complete circuit function and the realization of a more solid foundation for professional and strong ability of the actual operation.

能够独立地完成部分电路的设计开发和制作完成以及该电路功能的实现，具有较为扎实的专业基础和比较强的实际操作能力。

Connect down the folio pass the steady pressing the design proceeding of the unit electric circuit of the power supply to expatiate detailedly with explain, pass the large quantity electric circuit diagram to proceeded the elucidation with writing to the work principle of the unit electric circuit, combine to introduce the MC7107 A/ D transformation machine internal composing, lead the feet function and its the basic principle that proceeding convert.

接下来对开关稳压电源的单元电路的设计进行了详细的阐述和说明，通过大量电路图和文字对单元电路的工作原理进行了说明，并介绍了MC7107 A/D变换器的内部构成、引脚功能以及其进行转换的基本原理。

The temperature control system consists of AT89S52 single-chip microcomputer, cortege type keyboard unit , display unit and temperature control circuit of solid state relay,using microprocessor AT89S52 to collect and control temperature in real time.

温控系统由AT89S52单片机、行列式操作键盘、显示、继电器控温电路等部分组成，使用AT89S52单片机对温度进行实时的检测和控制，显示电路采用74164芯片进行动态扫描，能够同时显示当前温度和设定温度值。

It can be used with TV and computer which has video card as a display terminal.

针对ICX415AL的结构和特点，设计了系统的时序电路和驱动电路。

In accordance with the current research state of track circuit and the domestic practical demand, digital simulation modeling of track circuit working state analysis and antiinterference analysis is studied in this dissertation, as well as the design and realization of the digital simulation program.

论文针对当前轨道电路系统的研究状况和国内的实际需求，研究了轨道电路工作状态分析和抗干扰特性分析数字仿真模型的建立、数字仿真程序的设计与实现等问题。

The computer separately connects and controls the I/O end and A/D converter; the I/O end connects and controls the X, Y axis driving circuit and the semiconductor laser; the X, Y axis step-by-step driving circuit connects and controls the X, Y step-by-step electrical machines to control the dimensional platform; the beam of the semiconductor laser passes through the focusing drawtube with 0.1mm diameter to form the facula with the diameter less than 0.1mm; the facula irradiates on the detector surface of the XY dimensional displacement platform to produce the corresponding electric signals; the detector surface connects the A/D converter through the amplifier; the electrical signal is amplified and is converted into the data signal by the A/D converter and is sent to the computer for processing.

由计算机分别连接并控制I/O端口和A/D转换器，I/O端口分别连接并控制X、Y轴步进电机驱动电路和半导体激光器，X、Y轴步进电机驱动电路分别连接并控制X、Y轴步进电机，从而控制二维位移平台，半导体激光器的光束经过设有直径0.1mm小孔的聚焦镜筒形成＜0.1mm直径的光斑，光斑照射于设在XY二维位移平台上的探测器表面使其产生响应的电信号，探测器表面经放大器连接A/D转换器，电信号经放大器放大后，由A/D转换器转换为数据信号送计算机处理。

On the basis of the circuit theory,electromechanics and practical state of the electrified railways,we have made up equivalent circuit of threephase traction substations and traction power supply systems and have got external performance curves.

根据电路原理和电机学的基本理论，结合电气化铁路的实际状态，构成三相牵引变电所和牵引供电系统的等值电路，得出外特性曲线。

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。