cloud track
| method
| cloud track | |
| nucl.phys. | 云迹 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 云迹 | |||
| 云雾径迹 | |||
|
cloud track : 4 phrases in 2 subjects |
| Chemistry | 2 |
| Nuclear physics | 2 |