Unverified80% confidenceFactTime unknown
陈年重度水垢(结厚白层)单靠喷剂难以一次去除,需重复浸泡或搭配草酸粉,若玻璃已被氢氟酸/长期水碱蚀刻出雾斑,任何清洁剂都无法还原,只能物理抛光或更换
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80%
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Long-term
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