contamination evaluation的用法和樣例：
例句
- The evaluation system for air pollutants by vehicles' emission in Tianjin is established with certain accuracy,advantage and practicality in Tianjin.
依據城市機動(dòng)車(chē)空氣污染評價(jià)方法確立了天津市空氣污染物機動(dòng)車(chē)污染的評價(jià)體系。 - The background analysis and pollution evaluation of groundwater is an important content of environmental protection and pollution control.
地下水的水質(zhì)分析與污染評價(jià)是地下水保護與污染控制的重要內容。
