 |
| |||
| 事故故障，头害控制 | |||
| 灾难空难的控制 | |||
| 紧急情况处理预案 | |||
| disaster control: 14 phrases in 9 subjects |
| Automobiles | 2 |
| Aviation | 2 |
| Earth sciences | 2 |
| Ecology | 2 |
| Economy | 1 |
| Environment | 1 |
| Rail transport | 1 |
| Technology | 2 |
| Water resources | 1 |
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