The joints of control bypass contactor passive relay output points;
控制旁路接触器的接点是无源继电器输出点；
In some suitable condition, passive relay system can solve the problem of weak signals coverage without effects the network quality.
在适当场景下，引入无源中继系统可以达到解决弱信号的目的，同时不影响网络质量。
The article introduced some measure ways in the test process of passive microwave relay station, and gave some examples to explain the test steps, calculate ways and notice items.
介绍了微波无源中继站在调试过程中的测试方法，并举例阐述了测试步骤、计算方法及注意事项。
PDI also specialize in creating unique cable related OEM products for associated industries, including DC relay activated splitters, regulated DC voltage splitters and other unique passive devices.
PDI也专注于相关产业与电缆线相关的OEM产品。包括直流继电功分器，稳压直流功分器和其它独有的无源器件。
PDI also specialize in creating unique cable related OEM products for associated industries, including DC relay activated splitters, regulated DC voltage splitters and other unique passive devices.
PDI也专注于相关产业与电缆线相关的OEM产品。包括直流继电功分器，稳压直流功分器和其它独有的无源器件。
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