change of variable
| technique
| change of variable | |
| tech. | 更换变量; 变数的更换 |
| tech. од. | 变量变换 |
| technique | |
| exhib. | 技法 |
| gymn. | 手法; 操作法 |
| hydroel.st. | 技能; 工艺; 工程 |
| manag. | 方法论 |
| met. | 方法 |
| sport. | 技巧 |
| tech. | 技术 |
| |||
| 更换变量; 变数的更换; ★ 变量变换 | |||
| |||
| 变数更换; 变元 | |||
|
change of variable : 7 phrases in 4 subjects |
| Business | 2 |
| Cryptography | 1 |
| Space | 1 |
| Technology | 3 |