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  change-over switch
     The construction and working principle of a new series of power change-over switch automatic power change-over switch (such as A.T.S)is presented,and combines it in use of the electric system in longyan unattended substation and expounds advantage and reliability of the device.
     介绍新型的系列自动电源切换开关 (如 :A.T.S)的结构和工作原理 ,并结合其在龙岩局无人职守变电站的所用电系统中运用 ,来闸述该装置的先进性和可靠性
短句来源
     At last we sample 32 route biology signal by four double 8 change-over switch CC4097, a apparatus instrument amplifier INA110, a wave filter MAX297, a analog-digital converter A/D678 and programming fixed time or . counter 8253, In order to advance it, I adopt DMA(direct memory access) technology and replace memory technology. We can sample about six points during a cycle.
     利用了4片双8路切换开关CC4097,一个INA110仪器测量放大器、MAX297滤波器、AD678模数转换器以及可编程定时/计数器8253对这32路信号进行了采集,为了提高采样速度采用了DMA技术、交替存储技术,一个周期可采集到约6个样点,完全满足采样要求。
短句来源
  diverter switch
     Circuit Analysis of Vacuum Contact Diverter Switch
     真空触点切换开关的电路分析
短句来源
     Five typical circuits for the vacuum contact diverter switch used in transformer tap - changer are analyzed.
     对五种典型的变压器分接开关用真空触点切换开关电路进行了分析。
短句来源
  transfer switch
     The transfer sequence of the transfer switch can be appraised by transfer test:if all performance indices meet the design requirements,its transfer capability can thus be ensured,which is proved by years'practices.
     多年的实践已经验证,通过切换试验鉴定切换开关的切换顺序,如果切换顺序和各项性能指标符合设计要求就可以间接判断其切换能力,验证切换开关的质量,确保投入使用的开关质量符合要求。
短句来源
     The performance of transfer switch is analyzed based on the test current waves displayed on oscillograms.
     通过示波图分析切换开关在试验过程中的电流波形,以此对切换开关的性能进行分析。
短句来源
     SSTS (Solid State Transfer Switch) is one of the most economic and effective approaches to deal with the power quality problems for sensitive customers.
     固态切换开关(SSTS)利用大功率电力电子技术和基于微处理器、光纤通信和数字信号处理的测控技术,是解决敏感和关键负荷电力供应最经济有效的手段之一。
     The quality of transfer switch has crucial effect on the safe operation of on-load voltage regulation switch.
     切换开关质量的好坏对能否保证有载调压开关的安全运行起着决定性的作用。
短句来源
     Development of a Novel Medium Voltage Solid State Transfer Switch
     新型中压固态切换开关的研究
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  “切换开关”译为未确定词的双语例句
     Bureau Fan Cut Switch of QBZ-63\80\120/660(380)F Utilizes in Xinzhuangzi Coal Mine
     QBZ-63\80\120/660(380)F局扇切换开关在新庄孜矿的使用
短句来源
     Introduced new QBZ-63\80\120/660(380)F game of fan cuts the switch the principle of work as well as in Xinzhuangzi coal mine utilization,this product has the innovation,is the coal mine shaft bureau,fan switch turns to a new generation the product.
     介绍了新型QBZ-63\80\120/660(380)F局扇切换开关的工作原理,该产品具有创新性,是煤矿井下局扇开关设备的升级换代产品。
短句来源
     The design of low noise amplifier is the keystone of this thesis, ATF-35143 and AT-30511 are used for two stage low noise amplifier, and the gain is larger than 20dB, noise figure is 1.3dB. The startup voltage of transmitting circuit is larger than 10dBm, after the switch loss is deducted, the output power is about 27dBm, the whole gain of the receiving circuit is about 17dB and the noise figure is smaller than 3. 5dB.
     低噪声放大器的设计是本文的重点,本文采用ATF-35143和AT-30511进行两级低噪声放大器的设计,增益将≥20dB,噪声系数1.3dB。 发射部分启动电平≥10dBm,扣除切换开关损耗,输出功率约27dBm,接收支路整体增益约17dB,噪声系数≤3.5dB。
短句来源
     In the transmitting mode, the startup level is OdBm, the input dynamic range is 16dB, the output power reaches 27dBm allowing for the loss of the T/R switch, and the power spectrum satisfies the spectrum mask of IEEE802.11b. In the receiving mode, 12dB gain and 3.7dB noise figure are achieved.
     发射部分启动电平0dBm,输入动态范围16dB,扣除切换开关损耗,输出功率约27dBm,发射频谱满足IEEE802.11b频谱模板要求:接收整体增益约12dB,噪声系数约3.7dB。
短句来源
     Quickswitch COMS bus exchange switch QS3383 and high speed SRAM W24257AJ-8n are used in this circuit, the low ON resistance of the QS3383 allows the signal from inputs to outputs without adding propagation delay, dual 32M fast dual port memory module are consisted by two W24257AJ-8n and five QS3383. These features makes signal data can be high-ly speed sampled and processed in the same time.
     在此电路中采用了高速CMOS总线切换开关QS3383和高速SRAM W24257AJ-8n。 高速CMOS总线切换开关的低导通电阻特性,使QS3383的输入到输出没有附加的传播延迟,两片32M高速SRAM W24257AJ-8n同五片高速CMOS总线切换开关QS3383组成了双32M双端口存储器。
短句来源
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  shift switch
A shift switch logic circuit is a circuit where state signals are employed to carry out a modulo arithmetic operation.
      
Shift switch counters when used in non-critical paths may utilize an alternative type of state signals, called z-state signals.
      
Tables 1 and 2 illustrate the superiorities of shift switch counters compared with the well-known counterparts.
      
  change-over switch
Change-over switch for the pneumatic transport of loose materials
      
  diverter switch
As an additional test, DGA was performed to the diverter switch oil.
      
The PD activity came mainly from the region of the OLTC diverter switch tank.
      
These tests are programme every 8 years if filters are not fitted to the diverter switch compartment.
      
The loading of the springs for the diverter switch is part of the active power up to the final load switching at 4500 ms.
      
  transfer switch
After the transfer switch, there are 5 circuit breakers in the central UPS one-line diagram; 2 on the UPS input and 3 on the output.
      
A static transfer switch connected in parallel with EB1 is shown in Figure 24.
      
A manual output adjust knob, in the center of the M-A transfer switch, varies the controller output signal in manual mode of operation.
      
A transfer switch is connected to both the utility and generator power sources and supplies the load with power from one of the two sources.
      
All conduits and wiring from generator to transfer switch will be provided and installed by bidder.
      
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The measurement of liquid film thickness is important in the research of dynamic behavior of annular flow and in the characterization of its heat transmission.The method of determining thickness of liquid films in two-phase flow by means of impedance measurement techniques is reported in present paper. The mechanism of the sensor is explained and two kinds of compensation methods,i.e, using normalized sensor and trielectrode sensor are proposed in order to overcome the effect of fluid conductivity and dielectric...

The measurement of liquid film thickness is important in the research of dynamic behavior of annular flow and in the characterization of its heat transmission.The method of determining thickness of liquid films in two-phase flow by means of impedance measurement techniques is reported in present paper. The mechanism of the sensor is explained and two kinds of compensation methods,i.e, using normalized sensor and trielectrode sensor are proposed in order to overcome the effect of fluid conductivity and dielectric constant on the sensor response characteristic. The impedance measurement system used is also described in this paper.The instrumentation may be operated in a conductance or capacitance model depending on the electrical conductivity of the fluid.The computer in system can compensate temperature changing and linearize the signals measured.The liquid film thickness can be shown on CRT or printed out by a printer.Our experiment show that it is able to measure film thickness accurately,continuously and quickly.The measuring range is 0~4(mm).

在文中着重分析了传感器的工作机理,提出了传感器归一化和三电极传感器两种补偿措施,以克服流体电导率和介电常数变化引起的测量误差。本系统通过切换开关选择电导法或电容法测量导电和非导电流体,从而扩大了电阻抗法的适用范围。与测量系统适配的计算机对测量信号进行温度补偿和线性化处理,实时提供流体膜厚变化的情况。研制的电阻抗测量系统可连续检测两相流中液膜厚度。输出响应灵敏,测量范围可达0~4mm,抗干扰能力强,具有广泛的应用前景。

The reliability of three typical kinds of duplicating microprocessor fault-torerant patterns as series-parallel pattern, parallel-series pattern and hybrid pattern in detail are analyzed and compared each other associated with the particular of the regulation of water turbine.The influences of different factors(e.g.the MTBF of single module, the mean time to repaire, the reliability of the switch etc.) on the system reliability are discussed. At last, seggestions for designing a practical duplicating microprocessor...

The reliability of three typical kinds of duplicating microprocessor fault-torerant patterns as series-parallel pattern, parallel-series pattern and hybrid pattern in detail are analyzed and compared each other associated with the particular of the regulation of water turbine.The influences of different factors(e.g.the MTBF of single module, the mean time to repaire, the reliability of the switch etc.) on the system reliability are discussed. At last, seggestions for designing a practical duplicating microprocessor system are proposed.

根据水轮机调速器的特点,分不可修复和可修复两种情况。详细分析比较了简单并联、功能块级并联、混合并联三种双微处理机容错模式的可靠性,找出了它们随切换开关可靠性、平均修复时间、单微机系统平均无故障时间和功能块划分等因素变化而变化的规律。为选定双微机水轮机调速器的容错模式提供了理论依据,最后提出了设计双微机调速器的建议。

This paper introduces an auto-pusher for microscope. The auto-pusher has three control ways: computer, chip microprocessor and hand. It works by the control of the same electric circuit by two conversion switches It can be used with all kinds of optical microscopes,

本文介绍的显微镜标本自动推片器有计算机控制、单片机控制、手动控制三种方式,它通过两个切换开关控制同一套电路来进行工作。该推片器可以与各种光学显微镜配套使用。

 
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