| |||
| 底部封闭，上端开口沉箱 | |||
| 封底式沉箱 | |||
|
caisson box : 21 phrases in 6 subjects |
| Construction | 1 |
| Engineering geology | 4 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Port facilities | 1 |
| Technology | 12 |
| |||
| 底部封闭，上端开口沉箱 | |||
| 封底式沉箱 | |||
|
caisson box : 21 phrases in 6 subjects |
| Construction | 1 |
| Engineering geology | 4 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Port facilities | 1 |
| Technology | 12 |