铁路安全继电器需要测试的主要电气参数包括：工作值、释放值、反向工作值等。
The electrical characteristics of railway safety relay are mainly involved with operating value, releasing value, reversing value and so on.
主要具有设备电气参数仿真、自动及交互工作方式、模拟设备主要故障、模拟设备拆装的功能。
It can simulate the electric parameter, automatism and alternation working, simulated the mainly fault and disassembling, assembling.
电气参数和机械参数是影响小型继电器直流电弧开断性能的主要因素。
Electric and mechanism parameters are the main factors influencing the direct current arc breaking performance of small relays.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
本文详述了真空充气包装机的工作原理，对其主要机构和电气控制的设计，以及参数计算进行了深入分析。
This paper states the principles of the vacuum-gas flushing packaging machine. It analyses the design of main structure as well as electric-pneumatic control and the computation of specifications.
通过建立露天煤矿电气化铁道简化的均匀分布参数模型，分析了直流杂散电流的分布规律和影响直流杂散电流的主要因素， 并提出了抑制杂散电流应采取的有效措施。
The electric railway opencast mine is simplified to a even distribution parameter mode in this paper. By this mode, the distribution and main influencing factors of DC leak current are analyzed.
介绍了钢管内外表面喷砂除锈生产线的主要设备、工艺流程及主要参数，电气系统总体方案设计和程序设计。
The major equipment, process flow, main parameters, overall design scheme and program design of the production line for sand blast both inside and outside the pipe surface are introduced.
介绍了钢管内外表面喷砂除锈生产线的主要设备、工艺流程及主要参数，电气系统总体方案设计和程序设计。
The major equipment, process flow, main parameters, overall design scheme and program design of the production line for sand blast both inside and outside the pipe surface are introduced.
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