permanent repair

基本解释

Upon these, a tool which can repair permanent link is designed.
据此，设计了一个永久链路检修工具。
An advantage of this type of saddle clamp was that permanent repair could be made by welding the steel piece to the pipe and then removing the bolted portions.
这类鞍形管卡的优点是可对管道泄漏点进行永久性修理，把钢板和管子焊接，然后拆走螺栓部分。
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Although spontaneous healing of these structures can occur, and surgical repair may be possible, permanent loss of hearing can result.
虽然这些组织有时会自愈，手术修复也是可能的，但是还是有可能会有永久听力丧失的可能。