 |
| |||
| 等深线 | |||
| |||
| ★ 等深线 | |||
| 深度曲折 | |||
| 河底等高线 | |||
| 莫霍面深度; 等水深线; 等海深线 | |||
| |||
| 等深线海图 | |||
|
depth contours : 12 phrases in 4 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 4 |
| Technology | 6 |
| United Nations | 1 |
|
| |||
| 等深线 | |||
| |||
| ★ 等深线 | |||
| 深度曲折 | |||
| 河底等高线 | |||
| 莫霍面深度; 等水深线; 等海深线 | |||
| |||
| 等深线海图 | |||
|
depth contours : 12 phrases in 4 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 4 |
| Technology | 6 |
| United Nations | 1 |