Unverified85% confidenceDecision RuleTime unknown
厨房下水以油脂堵塞为主，应选含表面活性剂+次氯酸钠或强碱的液体型，液体比粉剂更易渗透油膜层；纯氢氧化钠粉剂遇冷凝固油脂效果有限
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