 |
| |||
| standard coal equivalent | |||
|
当量 煤 吨 : 6 phrases in 5 subjects |
| Earth sciences | 1 |
| Energy industry | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Technology | 2 |
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