利用恒速压汞技术研究了大庆和长庆低渗透油藏岩心的孔隙结构。
Pore structure of Daqing and Changqing low permeability reservoirs is further studied using rate-controlled mercury penetration technique.
风洞稳风速控制系统主要由风洞稳转速控制系统和风洞稳速压控制系统构成。
The wind tunnels steady wind velocity control systems are composed of wind tunnel rev control system and wind tunnel velocity and pressure control system.
矿井主扇扩散器是用来降低出口速压以提高风机静压而回收风机出口动能的装置。
The diffuser of mine main fan is a device to use reducing velocity pressure of outlet, increase static pressure and recovery kinetic energy.
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