| Subject | English | Chinese |
| tech. | diffuse polluting source | 分散污染源 |
| UN, ecol. | diffuse source | 分散污染源 |
| oil | diffuse source | 扩散源 |
| environ. | diffuse source Pollution which arises from various activities with no discrete source | 扩散源 (从非离散来源的各种活动产生的污染物。) |
| earth.sc. | diffuse source pollution | 散源污染 |