methane fermentation
| process
| methane fermentation | |
| anim.husb. | 沼气发酵 |
| chem. | 甲烷发酵 |
| process | |
| gen. | 过 程; 工 序; 工艺; 方 法 |
| archit. | 流程; 工艺规程 |
| hydroel.st. | 程序 |
| hydroel.st. од. | 过程; 进程; 步骤 |
| |||
| 沼气发酵 | |||
| 产甲烷发酵作用 | |||
| 甲烷发酵 | |||
|
methane fermentation : 5 phrases in 4 subjects |
| Agriculture | 1 |
| Agronomy | 1 |
| Technology | 2 |
| Water resources | 1 |