pilot-operated type safety valve
先导式安全阀 pilot-operated type safety valve 先导式减压阀 pilot-operated type relief valve 先进操作法 EVOP; evolutionary operation ..
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pilot-operated type safety valve
先导式安全阀
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The structure characteristics and operation principium of new type pilot operated all open safety valve under low pressure and vibration working conditions are introduced.
介绍一种在超低压和振动条件下工作的先导式全启安全阀的结构特点及工作原理。
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