three-group
| method
| three-group abbr. | |
| gen. | 三群的 |
| method abbr. | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 三群的 | |||
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three-group : 12 phrases in 8 subjects |
| Electronics | 1 |
| Finances | 1 |
| Football | 1 |
| Hydroelectric power stations | 1 |
| Refrigeration | 1 |
| Sports | 1 |
| Statistics | 1 |
| Technology | 5 |