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9. It is obviously impossible to regulate the decreasing pressure by a single cock or screw-down valve, when the steam pressure would decrease because the demand for steam on the varied side. What equipment is above description?
(A) Globe valve
(B) Reducing valve
(C) Quick closing valve
(D) Gate valve


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Wind 大一下 (2022/01/14)
當蒸汽壓力因不同側對蒸汽的需求而降低時,...


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9. It is obviously impossible to regulat..-阿摩線上測驗