正确答案: B
平均故障期
题目:故障率曲线分为三个阶段,不能列为三个阶段之中的是()。
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学习资料的答案和解析:
[单选题]当测得臂距差Δ⊥>0时,可判断该曲轴轴线呈()状态,两主轴承()于相邻轴承。
塌腰形/低
[单选题]拆下来的增压器转子一般应该(),以防止()。
立放/变形
[单选题]轴系理论中心线是船舶()时所确定的轴系中心线。
设计
[单选题]The cylinder and piston must be warmed up () to a temperature of about 140 degF in standing by engine.
gradually
[单选题]A viscous damper, as used on a marine diesel, is a sealed precision built device which dampens the torsional vibrations in the ().
crankshaft
[单选题]The ship has a diesel engine()a supercharger.
with