Any massive invasion from the North could be stymied by releasing water from South Korean DAMS along the Han River, flooding areas the invaders have to cross.
任何自北边来的大规模进攻都将能被韩国汉江沿线水坝释放的洪水冲溃，并淹没侵入所需要途经的地区。
2
After polymer flooding and polymer cross link micro gel flooding, the residual oil mainly distributes in middle and low permeable reservoirs. This is the potential area of EOR.