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c)新风æœ(lian)ºç»„å†(cong)¬å­£åœç”¨æ—¶è¡¨å†(cong)·å™¨ä¸­æœ‰(shi)存水


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(b)ç”׃ºŽå†(cong)äh(feng)°´(an)¾pÈ»Ÿ½Ž¡èµ\å†(cong)…有(shi)存水(an)åQ(ben)Œæ(shen)–°(zhong)风机¾l„çš„ä½ç½®åˆä½ŽäºŽç³»¾lŸä(cuan)¸»òq²ç®¡åQ(ben)Œå¦‚果连接管路阀(gu)门关(gua)é—­ä¸(zhen)严,存水(an)便从(hong)å†(cong)äh(feng)°´(an)供回水管é“慢渗到表冷å™(zhao)¨ä¸­åQ(ben)Œå› æ­(shu)¤å°½½Ž¡è¿›è¡Œäº†æ³„æ(juan)°´(an)æ“(na)作ä»(xi)然ä¼(mei)šå(ya)¯¼è‡´å(cun)†»è£‚事故的å‘生ã€(mo)?/span>


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