Variable Interval
| schedule
| variable interval | |
| el. | 可变间隔 |
| schedule | |
| gen. | 预定 |
| demogr. | 普查表 |
| IMF. | 附表 |
| math. | 调查表 |
| met. | 目录; 作业计划 |
| sport. | 安排; 时间表 |
| |||
| 可变间隔 | |||
|
Variable Interval : 10 phrases in 7 subjects |
| Air defense | 1 |
| Artificial intelligence | 1 |
| Business | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Statistics | 1 |
| Technology | 3 |