 |
| |||
| 等值线 | |||
| 阶层曲线 | |||
| 水平曲线 | |||
| level curve: 33 phrases in 6 subjects |
| Bridge construction | 1 |
| Corporate governance | 1 |
| Earth sciences | 1 |
| Hydroelectric power stations | 3 |
| Nautical | 1 |
| Technology | 26 |
|
| |||
| 等值线 | |||
| 阶层曲线 | |||
| 水平曲线 | |||
| level curve: 33 phrases in 6 subjects |
| Bridge construction | 1 |
| Corporate governance | 1 |
| Earth sciences | 1 |
| Hydroelectric power stations | 3 |
| Nautical | 1 |
| Technology | 26 |