您要查找的是不是：
- Heavymetal contamination 重金属污染
- Contamination can't be ruled out entirely. 污染是不能完全清除的。
- The brass surface must be free of contamination. 黄铜表面必须未经沾污。
- Such contamination has been extensively studied. 人们对这种污染进行了大量研究。
- Moral contamination or corruption. 腐蚀精神上被腐化或堕落
- The contamination should be removed. 应该清除掉污染。
- An abnormal fear of dirt or contamination. 不洁恐怖对污物或污染的异常恐惧
- No product contamination absolute tightness. 没有产品污染的绝对气密性。
- The other part is just contamination. 其他部分只是污染之物而已。
- We have five minutes before oxygen contamination. 在氧化之前我们有五分钟时间
- Contamination leads to lower yield. 污染导致产。
- Sticky tape paper roller, Control contamination. 强力除尘点纸，不残胶，不污染。
- Environmental contamination must be precluded. 四不致造成环境污染。
- The eradicator can wash out the hard contamination. 这种去污剂能去除难洗的污渍。
- Contamination by polychlorinated biphenyls (PCBs). 英文名称： Insulation liquids.
- Contamination damage apparent now apply to fareast for survey. 污损十分明显，目前正请求远东公司调查检验。
- Heavy metals contamination is the main type of soil contamination. 重金属污染是土壤污染的主要类型之一。
- Producing relatively little radioactive fallout or contamination. 相对来说几乎不产生放射尘和污染源的.
- We believe any level of contamination is unacceptable. 我们认为任何污染物都是不可接受的。
- I've got such a bad case of dust contamination,I can barely move! 我遭灰尘污染得厉害，几乎动不了！
