erection by swing
| method
| erection by swing | |
| bridg.constr. | 转体架设法 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 转体架设法 | |||
| 旋转法安装 | |||
|
erection by swing : 5 phrases in 3 subjects |
| Bridge construction | 3 |
| Rail transport | 1 |
| Technology | 1 |