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輪機工程(概要)(包括推進裝置、輔機與輪機英文)題庫下載題庫

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20. The main function of equipment is adjusting pressure, temperature and flow of fluid. What equipment is above description?
(A) Relief valve
(B) Regulating valve
(C) Reducing valve
(D) Needle valve


20. The main function of equipment is ad..-阿摩線上測驗