Those tie-in and adaptor regularly drop out on secular cyclical loading, impulsion and vibration force, even breaking.
这些接头和接箍在长期承受交变、冲击和振动载荷的工作条件下经常发生脱扣，甚至断裂。
Those tie-in and adaptor regularly drop out on secular cyclical loading, impulsion and vibration force, even breaking.
这些接头和接箍在长期承受交变、冲击和振动载荷的工作条件下经常发生脱扣，甚至断裂。
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