foreign matter 杂质 ; 异物 ; 藏什物 ; 混入物
filling and foreign matter content 填充料和杂质含量 ; 填充料和杂质量
filling & foreign matter content 填充物及杂质含量
determination of foreign matter 杂质检查 ; 杂质测定
stamping of foreign matter 杂物印痕
bronchus foreign matter 支气管异物
get rid of foreign matter 去掉杂质
incorporation of foreign matter 杂质掺入
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