hard time
| constraint
| hard time | |
| avia. | 定时; 定时 |
| polym. | 固化时间 |
| constraint | |
| gen. | 限制 |
| corp.gov. | 压抑 |
| dril. | 抑制 |
| IMF. | 限制因素 |
| math. | 限制， 制限 |
| math. од. | 约束 |
| met. | 制约; 压缩; 收缩 |
| space | 强制 |
| |||
| 定时; 定时修理 | |||
| 固化时间 | |||
| 定时的 | |||
|
hard time : 14 phrases in 8 subjects |
| Chemistry | 1 |
| Commerce | 1 |
| Economics | 1 |
| General | 2 |
| Information technology | 1 |
| Space | 5 |
| Sports | 1 |
| Technology | 2 |