The ground fell away in a broad sweep down to the river.转过一处大弯后，地面消失在与河水相接处。Cross-currents can sweep the strongest swimmer helplessly away.即使最强壮的游泳者也会无助地被交叉水流冲走。They put their chairs on their desks so that the caretaker ...
矿浆表观粘度与固体体积含量呈指数关系.The slurry apparent viscosity has exponent relation to the solid volume content.尖山铁矿—太钢矿浆输送管道是国内最长的铁矿浆输送管道.Jianshan - Taiyuan slurry pipeline is the longest pipeline for transporting slurry in China.该机...