back tracking
| method
| back tracking | |
| busin. | 按常规 撤回申请 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 按常规或惯例撤回申请 | |||
| 返回 | |||
|
back tracking : 8 phrases in 3 subjects |
| Artificial intelligence | 4 |
| Space | 2 |
| Technology | 2 |