在真空系统中，这种泵可单独使用，或作为增压泵、扩散泵等的前级泵。
Use: May serve as the transmission in the oil transfer system, the booster pump.
梯度放大器是核磁共振成像(MRI)系统的核心设备之一，它根据前级控制系统传来的指令，向梯度线圈提供特定波形的电流脉冲。
The gradient amplifier is an essential equipment of Magnetic Resonance Imaging system (MRI). It supplies the gradient coils with pulse currents according to the signal from the control system.
该泥水回流到二级处理系统，以保证排放前的澄清度。
Sludge liquor is recirculated in the secondary system to assure its purity before discharge.
主电路系统由输入整流滤波电路、前级逆变电路、高频变压器、整流滤波电路、后级逆变电路和输出电抗器组成。
The main circuit is made up of input rectifier & filter circuit, first inverter circuit, high-frequency transformer, second inverter circuit, rectifier & filter circuit and output reactor.
本文完成的主要工作有：设计直流蒸汽发生器的串级前馈—反馈控制系统。
These main jobs completed are included: the cascade feedforward-feedback control system of the once-through stream generator is advised.
在控制软件方面除采用经典的PID控制外，还引入了串级、前馈及模糊控制等算法，有效地提高了系统的控制性能。
Besides the typical PID controlling method, concatenation, feedforward and fuzzy control algorithms are used. As the result, the control functions of the system are efficiently improved.
系统中采用线性光偶和隔离电源，使前级放大电路和后级电路隔离，保证了系统的安全性。
The EMG preamplifier circuit and other circuits are isolated by high-linearity octocoupier and isolated power that reject the industry interference and improve the security of the system.
本文设计的系统包括两部分，即前级升压、稳压部分和后级逆变并网部分。
This designed system consists of two parts, First part is the control method of the multiple boost convertor, And the second part is the control method of grid-connection invertor.
该分布式电源系统采用高频母线形式，原边电路采用双管正激电路，电压前馈控制，后级利用磁放大器精确控制。
The primary circuit has the form of double switch forward of feedforward control, the second circuit used the magnetic amplifier as the post regulator.
设计了前馈串级复合控制算法，设置了合理的控制参数，实现了系统的快速、稳定、准确控制。
Suitable control parameters are set. A rapid, steady and accurate control of the system is realized.
整个系统分为两级，第一级进行粗分类，选取前两个后选字。
The whole system is divided into two cascades. The first step, rough classification is to select the first two candidates.
对改进型最大功率跟踪策略进行了仿真，结果表明，该控制策略在本系统设计的前级BOOST电路中可以有效地跟踪太阳能最大功率点。
Simulation about MPPT is also carried out and its results explain that the control strategy designed for the former BOOST circuits of this system can track the max power point effectively.
针对锅炉过热汽温的特点，设计前馈-反馈串级复合型控制系统。
Based on the characteristics of superheated steam temperature of a drum boiler, a new cascade feedback control system with load feed-forward is designed.
微波、毫米波系统的噪声系数基本上取决于前级放大器的噪声系数，所以低噪声放大器是接收系统中相当重要的部件。
The noise figure of a microwave or millimeter-wave system basically lies on the noise of the front amplifier, so the Low Noise Amplifier (LNA) plays critical role for the receiving system.
用该系统对某级增压比2.2的单级高负荷后掠风扇进行了后掠和前掠大小叶片改型设计。
Using this design system, a high-loaded backward-swept fan with a stage pressure ratio of 2.2 was redesigned firstly as a backward-swept and secondly as a forward-swept splittered fan.
测试是CTCS - 3级列车控制系统投入运营前的一个重要步骤，对其各方面性能进行测试，是保证列车行车安全，提高运输效率的重要手段。
Testing is an important process before the CTCS-3 being put into practice and is an essential way to ensure the safe operations of the train and improve the efficiency of the capacity of transporting.
测试是CTCS - 3级列车控制系统投入运营前的一个重要步骤，对其各方面性能进行测试，是保证列车行车安全，提高运输效率的重要手段。
Testing is an important process before the CTCS-3 being put into practice and is an essential way to ensure the safe operations of the train and improve the efficiency of the capacity of transporting.
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