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.
依據城市機動車空氣污染評價方法確立了天津市空氣污染物機動車污染的評價體系。 - The background analysis and pollution evaluation of groundwater is an important content of environmental protection and pollution control.
地下水的水質分析與污染評價是地下水保護與污染控制的重要內容。
