问题详情

Cast iron pistons used in large propulsion diesel engines are constructed with ()


A、not taper what so ever

B、the skirt being tapered and smaller than the crown

C、the skirt being tapered and larger than the crown

D、the crown being tapered and smaller than the skirt

时间:2022-01-12 10:47 关键词: 船舶电气与船舶安全 水路交通运输技能考试 海船船员考试

答案解析

D