amount of foulingcontamination degreecontamination leveldegree of contaminationdegree of pollutionpolluting strengthpollution level污染: pollute; contaminate程度: level; degree排氣污染程度: emission level污染程度不同…: pollution… differ in degree污染程度測定器: contamination tester下載手機詞典可隨時隨地查詞查翻譯