[KongchangAI]
Unverified88% confidenceFactTime unknown

皂垢(soap scum)本质是钙镁皂+皮脂混合物,需用弱酸性(pH3-5)含柠檬酸/乳酸的清洁剂溶解;而水垢(碳酸钙)需要更强酸性(pH2-3),二者用碱性清洁剂效果差

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88%
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