To introduce the structure, performance and design of the differential stop check valve.
介绍了差压式截止止回阀的结构、性能和设计要点。
The bubbling valve is proven to be a better valve in terms of overall performance.
是一种综合性能优良的新型浮阀。
The field test shows that the performance of new valve is up to grade.
经测试表明新型阀的功能和指标均达到要求。
Each valve is used to display the kind of structural performance.
每种阀门构造都是用来施展那种性能。
Each valve is used to display the kind of structural performance.
每种阀门构造都是用来施展那种性能。
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