单选题船机磨损故障期的特点是()。A故障率低B故障率随时间延长而增加C时间较长D故障率随时间延长而降低
单选题
船机磨损故障期的特点是()。
A
故障率低
B
故障率随时间延长而增加
C
时间较长
D
故障率随时间延长而降低
参考解析
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