isolating valve
常见例句
- All pressure instruments shall have a primary block valve isolating it from the vessel or pipe.
所有压力仪表应安装一个主截止阀，以便与容器或管道隔离。 - The utility model is provided with separate isolating valve, aeration valve, vacuum valve and thief rod mating the sampling cavity to keep the air in the furnace cavity and realize on-line sampling.
本实用新型设置了 独立的隔离、充气、真空阀门以及与取样腔配套的取样杆，使取样过程中的炉腔内气氛不变， 达到在线取样的目的。
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