primary reference
| material
| primary reference | |
| el. | 主要参考 |
| material | |
| anim.husb. | 物质; 原料; 材料 |
| auto. | 材 料; 原材料; 资料 |
| chem. | 物料 |
| |||
| 主要参考 | |||
|
primary reference : 22 phrases in 10 subjects |
| Automobiles | 2 |
| Aviation | 3 |
| Chemistry | 4 |
| Communications | 2 |
| Electronics | 4 |
| General | 2 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 1 |
| Telecommunications | 2 |