阿摩線上測驗
25. The volume displaced per cycle of a reciprocating pump remains constant, which is the
function of diameter of piston and ____.
(A) stroke
(B) rotational speed
(C) power of motor
(D) fluid density
答案：登入後查看
統計： A(901), B(93), C(94), D(59), E(0) #3077162
統計： A(901), B(93), C(94), D(59), E(0) #3077162
