铝活塞外圆表面过度磨损后 应采用_______修复A.换新B.镀铁C.镀铬D.热喷涂请帮忙给出正确答

参考解答

41j***779

2024-06-14 22:13:00



相似问题

• Gear pumps are widely used to transfer any one of

  Gear pumps are widely used to transfer any one of the following but A fuel oilB lube oilC hydraulic oilD fresh water请帮忙给出正确答案和分析，谢谢！

• 从扫气口观察活塞环的工作状态时 如发现个别环的表面干燥发黑说明该环可能______。A.正常B.断裂

  从扫气口观察活塞环的工作状态时，如发现个别环的表面干燥发黑说明该环可能______。A 正常B 断裂C 弹力不足D 断裂或弹力不足请帮忙给出正确答案和分析，谢谢！

• A controllable pitch propeller on a diesel driven

  A controllable pitch propeller on a diesel driven vessel eliminates the need forA friction clutchesB disconnect clutchesC reversing gearsD reduction gears请帮忙给出正确答案和分析，谢谢！

• 活塞环槽端面磨损不仅使其活塞环的平面间隙增大 使pc和pz下降 还会使A.环的弹力下降B.环折断C.

  活塞环槽端面磨损不仅使其活塞环的平面间隙增大，使pc和pz下降，还会使A 环的弹力下降B 环折断C 环的密封性下降D 环磨损请帮忙给出正确答案和分析，谢谢！

• During the dock repair when installing the tail s

  During the dock repair, when installing the tail shaft and propeller, _____ should be on the spot for supervisingA chief eng