定期检查电动推杆及电气部分的运行情况，电液部分的运行情况及管接头处是否有泄漏现象。
Check the operating condition of electric draw stem and electricity parts. Check the electric hydraulic parts and pipe joints.
介绍一种新型的直动式电反馈高压电气比例减压阀的结构原理。
The structure and principle of a new type of direct high pressure electric-pneumatic proportional reducing pressure valve with electric feedback is proposed.
为了减少电气化铁路对其沿线的通信系统造成的干扰，电牵引供电系统可以采用自耦变压器供电方式。
Electrification railway will interfere with the communication system along the line. To decrease this kind of interference, the autotransformer power-supply mode can be adopted.
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