 |
| |||
| self-monitoring system | |||
| 自监控系统: 21 phrases in 9 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 6 |
| Business | 1 |
| Communications | 1 |
| Earth sciences | 1 |
| Mechanics | 2 |
| Space | 1 |
| Technology | 7 |
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