The west ethnic region is that part of China where there is a concentration of eth-nic minority nationalities .This incl......

The western ethnic region is that part of China where there is a concentration of eth-nic minority nationalities .This i......

建立了油藏能量势的定义,阐述了其物理意义.油藏能量势好地揭示油藏开发过程中流体运动的本质,运用该定义能较好地解释油藏开发过......