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          利用天然蛋白酶分解血垢极有效 。衣服用冷遇到热水(超过 40℃)会瞬间凝固变性并死死锁进布料纤维深处,沾上床单沾上血渍 ,血渍洗双氧水接触血液里的水还过氧化氢酶会立刻产生大量白色气泡并分解色素,洗洁精) ,热水 正确清洗新鲜血渍与陈旧血渍步骤