 |
| |||
| 液流方向控制阀 | |||
| 单向控制阀 | |||
| 换向阀 | |||
| 定向控制阀 | |||
| 方向控制阀 | |||
| directional control valve: 4 phrases in 4 subjects |
| Automobiles | 1 |
| Hydroelectric power stations | 1 |
| Rail transport | 1 |
| Technology | 1 |
|
| |||
| 液流方向控制阀 | |||
| 单向控制阀 | |||
| 换向阀 | |||
| 定向控制阀 | |||
| 方向控制阀 | |||
| directional control valve: 4 phrases in 4 subjects |
| Automobiles | 1 |
| Hydroelectric power stations | 1 |
| Rail transport | 1 |
| Technology | 1 |