我院口腔科购上海口腔机械厂生产的ＳＣ—１６０型高速涡轮机在使用中，经常出现压力继电器皮碗破裂，造成漏气故障，有时一周要更换两到叁只皮碗。询问厂家，解释是压力继电器顶部金属圆型顶板边缘有毛刺造成的，经厂家和本人多次修理故障依旧。在我修理陷入困境时，仔细阅读 In the use of the SC-160 high-speed turbines produced by the Shanghai Oral Machinery Factory in our department of dentistry, the pressure relay cups often ruptured, resulting in leakage failures, and sometimes only two cups were replaced every week. Ask the manufacturer to explain that there is a burr on the top edge of the metal round top plate of the pressure relay, and the manufacturer and the owner have repeatedly repaired the failure. Read carefully when my repair is in trouble