self-vibration
| method
| self vibration | |
| bridg.constr. | 自振 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 自振 | |||
|
self-vibration : 11 phrases in 5 subjects |
| Automobiles | 2 |
| Aviation | 2 |
| Rail transport | 1 |
| Space | 4 |
| Technology | 2 |