Fatigue failure is a common kind of mechanical parts and structure damage.
疲劳破坏是机械零件和结构的常见的失效形式。
The lift is part of common failures occur can be classified according to mechanical failure and electrical failure two kinds.
电梯常见故障按照发生部位来说可分为机械故障和电气故障两种。
At present the mechanical failure of submersible electric pump is common phenomenon during a process of oil production.
电潜泵机械故障是目前生产中的常见现象。
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