問題詳情

71.抽吸壓力調節器（suction vaccum regulator）較不會採用下列那一項來調節其抽吸的流量與壓力？
(A)Venturi suction device
(B)spring-load valve
(C)bleed-in valve
(D)electromagnetic valve

參考答案

答案：D
難度：困難0.307692
統計：A(15),B(7),C(9),D(24),E(0)