钢筋混凝土结构的过早失效大多是由于其中的钢筋腐蚀所致。
Premature failure of reinforced concrete structures are mostly caused by the corrosion of rebars embedded in the concrete.
可以帮助使用者采取针对性措施避免外啮合齿轮泵过早失效；
So gear pump can be avoided failed for a long time with necessary measures.
压力过大会促使密封过早失效，而接触压力过小则会引起泄漏。
Pressure the General Assembly to premature seal failure, and the contact pressure is too small will cause leakage.
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