| |||
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 |