pollution engineering
| technique
| Pollution Engineering | |
| construct. | 污染工程 |
| technique | |
| exhib. | 技法 |
| gymn. | 手法; 操作法 |
| hydroel.st. | 技能; 工艺; 工程 |
| manag. | 方法论 |
| met. | 方法 |
| sport. | 技巧 |
| tech. | 技术 |
| |||
| 污染工程美 | |||
| |||
| 污染工程 | |||
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pollution engineering : 12 phrases in 4 subjects |
| Ecology | 3 |
| General | 1 |
| Scientific | 1 |
| Technology | 7 |