| |||
| 表面梯度 | |||
| 河面比降; 水面比降; 地面坡度 | |||
|
surface gradient : 9 phrases in 6 subjects |
| Aviation | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 2 |
| Nautical | 1 |
| Technology | 3 |
| |||
| 表面梯度 | |||
| 河面比降; 水面比降; 地面坡度 | |||
|
surface gradient : 9 phrases in 6 subjects |
| Aviation | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 2 |
| Nautical | 1 |
| Technology | 3 |