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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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19. What device could permit for a higher-pressure source to supply a lower-pressure service, with an automatic response to changes in demand?
(A) Constant flow fitting
(B) Relief valve
(C) Stop valve
(D) Pressure-reducing valve


19. What device could permit for a highe..-阿摩線上測驗