 |
| |||
| 硝代; 渗氮法 | |||
| 硝化 (nitratio) | |||
| 用硝酸处理; 硝基置换 | |||
| 氮化作用 | |||
| 硝化作用 | |||
| 氮化 (【技】向钢件表面渗人氮，形成富氮硬化层的化学热处理工艺。); 渗氮 | |||
| 硝化 (作用) | |||
| 硝化作用 | |||
| ★ 硝化 | |||
|
nitration : 58 phrases in 8 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Biochemistry | 1 |
| Chemistry | 22 |
| General | 1 |
| Metallurgy | 12 |
| Oil / petroleum | 4 |
| Technology | 16 |