deep-well aeration
| method
| deep well aeration | |
| water.res. ecol. | 深井曝气 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
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| 深井曝气 | |||
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| 深井曝气 | |||
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deep-well aeration : 10 phrases in 3 subjects |
| Scientific | 1 |
| Technology | 4 |
| Water resources | 5 |