Diamonds have extreme resistance to abrasion.钻石极抗磨损.Erosion of pipes and vessels from abrasion by particles can be serious.由于固体颗粒的磨蚀作用,管子和容器的磨损严重.Abrasion also abets wind erosion.磨损作用也助长了风的侵蚀....
Vertical elements carry sufficient load through cantilever action to produce cantilever deflections equal to arch deflections.垂直杆件则借悬臂作用产生和拱挠度相等的悬臂挠度,来承担足够的荷载.The gadget can be attached to any vertical surface...这小玩意儿可以粘...