The reasons of bulge of roll material roofing, prevente of it in construction and maintenance methods of it were presented in this paper.
主要介绍了卷材屋面起鼓的原因、施工时应动如何预防及维修方法。
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Conclusion:Immediate reconstruction of skull base with suitable material and surgical technique can prevente complications such as postoperative infection and cerebrospinal leakage brain hernation.