| |||
| 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 |
| |||
| 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 |