Unverified90% confidenceDecision RuleTime unknown
壁挂式(窗式)换气扇需匹配预留孔洞尺寸,常见规格为10寸(约30cm)、12寸(约37cm),购买前必须测量墙孔或窗洞内径,误差需在±1cm内,否则密封条无法贴合导致漏风漏油
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