The paper discussed harm, reason, measures, and application of screw fastener connection loosening, in order to attach importance to this problem.
本文就螺纹紧固件连接松动的危害、原因，防松措施及其应用等进行了探讨，以抛砖引玉，引起人们对该问题的重视。
The paper discussed harm, reason, measures, and application of screw fastener connection loosening, in order to attach importance to this problem.
本文就螺纹紧固件连接松动的危害、原因，防松措施及其应用等进行了探讨，以抛砖引玉，引起人们对该问题的重视。
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