| 1. | Directional control combination valve with 2 - speed for ships
船用双速换向组合阀 |
| 2. | Directional control blasting for building backout
废弃修理车间的定向控制爆破拆除 |
| 3. | Three - position four way directional control valve
三位四通方向控制阀 |
| 4. | Demolition of an 80 m - high chimney by directional controlled blasting
高烟囱定向控制爆破拆除 |
| 5. | Hydraulic fluid power - valves - testing method of directional control valves
方向控制阀试验方法 |
| 6. | The vehicle directional control based on fractional order pd controller
控制器的车辆方向控制 |
| 7. | Hydraulic fluid power - hand and roller operated directional control valve
液压手动及滚轮换向阀 |
| 8. | Three position four - way directional control valve
三位四通换向阀 |
| 9. | Two position three way directional control valve
二位三通换向阀 |
| 10. | Hydraulic fluid power - four - port directional control valves - mounting surfaces
四油口板式液压方向控制阀安装面 |
