secondary contamination的意思|示意
二次污染
secondary contamination相关短语
1、 a secondary contamination 二次污染物
2、 create secondary contamination 形成二次污染
3、 avoidance of secondary contamination 避免二次污染
secondary contamination相关例句
Artificial secondary package is cost consumable and easy to create secondary contamination.
人工二次套装费用高,极易形成二次污染.
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