With these excellent properties the unidirectionalpressure blockage agent plugs the fractures in permeable reservior and protects the oil and g...
证实了单向压力封闭剂具有封闭渗透性岩层裂缝和保护油气层的优良性能。
2
Adopting a low-power strategy by introducing double radial operating airgaps and reducing axial non-operating airgaps, a low-power unidirectional proportional solenoid for high pressure is presented.