ring and ball
| method
| ring and ball | |
| f.trade. | 环球法 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 环球法 | |||
| 密封圈与球 | |||
|
ring and ball : 39 phrases in 10 subjects |
| Architecture | 2 |
| Chemistry | 8 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 3 |
| Plastics | 4 |
| Polymers | 3 |
| Technology | 14 |
| Textile industry | 1 |