![]() |
| |||
| 参考时间 | |||
| 标准时间; 基准时间; 计时开始点 | |||
| 参考期 | |||
|
reference time : 53 phrases in 12 subjects |
| Air defense | 3 |
| Artificial intelligence | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Chemistry | 1 |
| Electronics | 11 |
| General | 1 |
| Librarianship | 7 |
| Oil / petroleum | 2 |
| Space | 8 |
| Statistics | 2 |
| Technology | 13 |