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....
Abrasion also abets wind erosion.磨损作用也助长了风的侵蚀.Diamonds have extreme resistance to abrasion.钻石极抗磨损.Study of Wear - resistant and Abrasion Mechanism of Co - Cr - W Hardfacing Alloys.Co-Cr-W堆焊合金耐磨性及耐磨机理的研究.Erosion of pipes ...
The miners trooped home.矿工们成群结队地回家了.They all trooped back to the house for a rest...他们都成群结队地回到房子里休息。The men trooped into work with resignation.男人们被迫只好一伙伙地开始工作。The students trooped into the classroom.学生们列队走进教室....
大家互相推挤,都想好好看看那位来访的名人.The crowd jammed together to get a good view of the famous visitor.他们推挤年纪大的绅士们, 那位绅士低头一看, 他的表不见了.They hustled old gentlemen; the old gentleman glances down, his watch is gone.人群向着栅栏推挤.The crowds were...