main group
| element
| main group | |
| chem. од. | 主族 |
| element | |
| econ. | 基元 |
| hydroel.st. | 成分; 单元; 电极; 电池; 零件 |
| hydroel.st. од. | 元素 |
| math. | 集合的元素 |
| met. од. | 元件 |
| sport. | 要素 |
| |||
| ★ 主族 | |||
| 周期表主族 | |||
| English thesaurus | |||
| |||
| MG (NATO) | |||
|
main group : 8 phrases in 7 subjects |
| Electronics | 1 |
| Forestry | 1 |
| General | 1 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Technology | 2 |
| Telecommunications | 1 |