first difference
| method
| first difference | |
| tech. | 一阶有限差; 一阶差分; 一次差 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 一阶有限差; 一阶差分; 一次差 | |||
|
first difference : 21 phrases in 9 subjects |
| Aviation | 2 |
| Business | 5 |
| Chemistry | 1 |
| Electronics | 1 |
| Mathematics | 2 |
| Nautical | 1 |
| Polymers | 1 |
| Space | 1 |
| Technology | 7 |