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

foulen.(法语) 糙面粗哔叽；缩绒梳毛呢；人群；芸芸众生fouladj.恶臭的；邪恶的；污秽的；恶劣的；犯规的n.犯规v.弄脏；妨碍；犯规foul language.粗话foulard de chine点子花纹薄软绸foul one's handsn.格式榆出规格建议fouling products污垢物foul a pitch off在球场上对 ... 犯规foul an opponent对对手犯规fouling mechanism结垢机理foul menstruation经来臭如腐肉fouling community污损群落foul or stale air混浊的空气

1. The fouling of sewage heat exchangers is the main factor that impacts the application of sewage cooling and heating source.
   摘要污水换热器污垢是影响污水冷热源应用的主要因素。
2. If debris in the water system continues to cause fouling, a strainer can be installed upstream of the backflow assembly.
   如果水系统内的堆积物继续产生污垢，则在回流阀总成的上游要安装一个过滤器。