contaminated substance meaning in English
不纯物质
Examples
- Abstract : reviewed the accidents of dioxin contamination in american and europe . their countermeasure were substantialy to remove the high concentration contaminated substance and to cover the low concentration contaminated substance with clean soil . discussed seven methods of decomposition for the high concentration dioxin in contaminated substance
文摘:综述了欧美国家处理二口恶英污染物的一些实例，其对策主要是高浓度污染物除去、分解，低浓度的则复盖干净土壤，进而讨论了高浓度污染物中二口恶英的七种分解技术。