contamination from中文什么意思

受的污染

• contamination:    n. 污染；污秽，污物；(语言的)交 ...
• from:     from above [ ...
• free from contamination:    没有污染; 没有杂质; 无污染

例句与用法

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1. Ultrapur products are contained in high quality teflon bottles to avoid contamination from bottle material
   Utrapur之相关产品使用铁弗瓶以避免来自瓶身材质之污染。
2. Chip multilayer ceramic inductors should be handled with care to avoid damage or contamination from perspiration and skin oils
   芯片陶瓷电感应小心搬运以避免破损和皮肤出油的污染。
3. Contamination from pesticides , fertilizers , and sewage may also affect the safety of food produced from the region
   另一方面，受杀虫剂化肥及废水污染的珠江水质，亦造成食用鱼类的安全等问题。
4. After fitting of the valve , the valve should be maintained in a closed position to prevent any contamination from entering the cylinder
   连接好阀门后，阀门应保持关闭位置，为防止任何污染进入气瓶。
5. Prior to concrete casting , upper column rebar and anchor bolt thread shall be wrapped by plastic sheet to prevent contamination from concrete
   2砼浇筑前用塑料薄膜对上部柱筋及螺栓丝扣进行保护，防止砼污染钢筋。