hand cleaning [矿业] 手选 ; 手工清洗
hand cleaning door 清洁用手孔
hand cleaning centrifuge 人工去污油分离器
waterless hand cleaning cream 无水洗手膏
Waterless hand cleaning gel 无水净手凝胶
Hand-cleaning Foam 手部清洁泡沫
hand cleaning gel 免水洗手液
anhydrous hand-cleaning agent 无水洁手剂
anhydrous hand-cleaning agents 无水洁手剂
hand tool cleaning 手工工具清理
He has developed several prototypes of hand-cleaning devices that can be mounted on walls, as well as a portable, battery-operated model the size of a large electric toothbrush.
他发明了好几种洁手装置的原型机，这些机器可以悬挂在墙上，跟那种便携式的电动模型一样，大小相当于一支较大的电动牙刷。
Buying clothes that don't require dry cleaning, or hand washing them yourself, can reduce your exposure to this chemical.
如果你购买不需要干洗的衣物，或自己手洗它们，就能减少你和这种化学物质接触的机会。
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