main difference
| method
| main difference | |
| avia. | 主要区别 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 主要区别 | |||
|
main difference : 2 phrases in 2 subjects |
| Marketing | 1 |
| Technology | 1 |