pre-column
| derivatization
| pre-column | |
| tech. | 预柱; 柱前 |
| derivatization | |
| gen. | 衍生; 导出 |
| agric. | 衍生化 |
| anim.husb. | 衍化作用; 诱导作用 |
| pest.contr. | 衍生作用 |
| |||
| ★ 前置柱; 预柱; 柱前 | |||
|
pre-column : 9 phrases in 3 subjects |
| Chemistry | 6 |
| Management | 1 |
| Technology | 2 |