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dòng mài zhù shè zhēn tóu
动脉注射针头
arterial needle
zhù shè zhēn tóu měi cì dōu yào xiāo dú yǐ fáng gǎn rǎn
注射针头每次都要消毒,以防感染。
Always sterilize the needle to prevent infection.
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