分层浇筑 | |
hydroel.st. | placement in layers |
混凝土 | |
environ. | concrete |
manag. | concrete |
met. | beton |
oil | cement concrete |
sport. | concrete |
| |||
placement in layers | |||
pour in layers |
分层浇筑 : 6 phrases in 2 subjects |
Hydroelectric power stations | 3 |
Technology | 3 |