fouling (dirty) factor

• 污垢系数

fouling (dirty) factor的英文翻译是什么意思，词典释义与在线翻译：

英英释义

动词 foul:

1. hit a foul ball

2. make impure

3. become or cause to become obstructed

4. commit a foul; break the rules

5. spot, stain, or pollute

6. make unclean

7. become soiled and dirty