stage relation
| method
| stage relation | |
| ocean. | 相应汞位关系 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 相应汞位关系 | |||
| 相应水位曲线 | |||
|
stage relation : 24 phrases in 6 subjects |
| Bridge construction | 1 |
| Desert science | 1 |
| Geography | 1 |
| Hydroelectric power stations | 2 |
| Oceanography & oceanology | 5 |
| Technology | 14 |