progressive loading
| trial
| progressive loading | |
| tech. | 递增荷载 |
| Trial | |
| manag. | 试制 |
| trial | |
| gen. | 考验 |
| environ. | 审判 |
| hydroel.st. | 试验; 检验; 试算 |
| math. | 试验，试探 |
| met. | 检査 |
| space | 试车; 试验性的 |
| |||
| 递增荷载 | |||
|
progressive loading : 3 phrases in 2 subjects |
| Bridge construction | 1 |
| Technology | 2 |