| |||
water apron | |||
apron; protection apron | |||
paving; revetment | |||
consolidation dam | |||
bucket (apron) | |||
| |||
water apron | |||
| |||
apron | |||
| |||
water apron | |||
| |||
apron |
护坦: 90 phrases in 9 subjects |
Architecture | 1 |
Aviation | 1 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 5 |
Engineering geology | 5 |
Hydroelectric power stations | 22 |
Hydrology | 1 |
Technology | 53 |