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 ...
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....
The Australian stockmarket is down by 26 % since its peak in November.澳大利亚股票市场的市值也已从去年11月最高峰跌去了26%.Excessively low interest rates are also fuelling stockmarket and property bubbles.过低的利率水平还会助长股票市场以及房地产市场的泡沫.She put out a...
The human thumb is opposable.人类的拇指与其他四指对置.The thumb is opposable to the forefinger.大拇指可与食指相对.The opposable thumb allows them to pick up small items and grip objects from Both sides.利用拇指和手指可以捡拾小东西和抓握物体....