mechanical breathing valve
... 罐车呼吸阀 Tanker breathing valve 机械呼吸阀 Mechanical breathing valve 全天候阻火呼吸阀 Weather fire retardant breathing valve ...
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mechanical breathing valve
机械呼吸阀
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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When the pressure of the gas tank in the mechanical breathing valve control pressure within the breathing valve does not move, keep the tank airtight;
当罐内气体的压力在机械呼吸阀的控制压力范围之内时，呼吸阀不动作，保持油罐的密闭性；
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