 |
| |||
| 沼气 | |||
| 甲烷气体 | |||
| 沼气植物在炭化过程中产生的气体。主要残留在煤的夹层中，煤层内也常出现。沼气是无色、无臭、无味的可燃性气体,密度为 0.558 | |||
| 甲烷 | |||
| methane gas: 21 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Chemistry | 1 |
| Earth sciences | 1 |
| Ecology | 2 |
| General | 1 |
| Geology | 1 |
| Oil / petroleum | 2 |
| Oil processing plants | 2 |
| Space | 2 |
| Technology | 5 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips