6. What following set of pumps is positive displacement type?
(A) Rotary pump and Reciprocating pump
(B) Centrifugal pump and Injection pump
(C) Centrifugal pump and Rotary pump
(D) Volute pump and Injection pump
詳解 (共 2 筆)
未解鎖
翻譯:正排量型式(positive di...