line reversal
| method
| line reversal | |
| tech. | 谱线反转; 谱线变换 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 谱线反转; 谱线变换 | |||
|
line reversal : 7 phrases in 4 subjects |
| Chemistry | 1 |
| Construction | 1 |
| Physics | 1 |
| Technology | 4 |