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Cotton buds has cone fitted to tube behind cotton bud to limit depth of insertion
Cotton buds has cone fitted to tube behind cotton bud to limit depth of insertion
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机译:棉签的圆锥形安装在棉签后面的管子上,以限制插入深度
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摘要
The cotton bud consists of a tube (2) with cotton wool (1) at one end. It also has a cone (3) fastened to the tube behind the cotton wool bud, or formed integrally with the tube, to limit the depth of its insertion into era and nose.
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