Unverified90% confidenceTradeoffTime unknown
免打孔与承重不可兼得:吸盘/胶粘款可保护瓷砖防水层但承重弱且会脱落,打孔款牢固却破坏瓷砖防水需打胶密封孔位——真正需要支撑的场景务必选打孔
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