 |
| |||
| 构造低地 | |||
| 鞍部; 构造低点; 构造洼地 | |||
| 构造低陷 | |||
| structural low: 15 phrases in 5 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 3 |
| Space | 1 |
| Technology | 9 |
|
| |||
| 构造低地 | |||
| 鞍部; 构造低点; 构造洼地 | |||
| 构造低陷 | |||
| structural low: 15 phrases in 5 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 3 |
| Space | 1 |
| Technology | 9 |