To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should ().
A. increase the governor oil pressure
B. adjust the speed droop setting
C. adjust the speeder spring travel
D. adjust the compensating needle valve
查看答案
滤线器的作用原理是因为吸收原发射线.从而减少了续发射线即散射线对胶片的不良
A. 正确
B. 错误
以下()清算报文适用于券款对付结算方式
A. 540
B. 541
C. 542
D. 543