mathematics model
| method
| mathematics model | |
| railw. | 数学模型 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 数学模型 | |||
|
mathematics model : 6 phrases in 3 subjects |
| Space | 2 |
| Technology | 3 |
| Telecommunications | 1 |