three button
| grouping
| three-button | |
| gen. | 三钮的 |
| grouping | |
| gen. | 编组; 群集 |
| gymn. | 分组 |
| manag. | 归组 |
| mech. | 部件装配图 |
| met. | 分群; 组合; 集聚 |
| shoot. | 弹群 |
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| 三钮的 | |||
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three button : 8 phrases in 3 subjects |
| Chemistry | 1 |
| Technology | 1 |
| Textile industry | 6 |