文中研究了在不同切削速度下一次碳化物对高速钢工具耐磨性的影响。
The tool lifes for D601 are equivalent to that for M2. The effect of primary carbides on the wear resistance of HSS tools at different speeds was discussed.
本试验结果还说明，在一些磨损条件下，高速钢中一次碳化物对耐磨性的影响不是主要的，基体性能可以起到更大的作用。
It may also be inferred that under certain wear conditions, it is not primary carbides but matrix properties which play major role in the wear resistance of HSS.
一次，当我在打工的肯德基餐厅中清理压力锅内碳化油时，在忧郁的虚荣情绪下，我在水池里烧掉了成绩单。
Once, in a fit of melancholic vanity, I burned my report card in the sink of the KFC where I worked scraping carbonized grease from the pressure cookers.
联合国环境规划署的官员在高高的喜马拉雅山上召开一次记者招待会，强调碳化合物hcfc对臭氧层的危害。
Officials from the United Nations Environment Programme have held a news conference high in the Himalayas to underline the dangers still facing the ozone layer from carbon compounds known as HCFCs.
联合国环境规划署的官员在高高的喜马拉雅山上召开一次记者招待会，强调碳化合物hcfc对臭氧层的危害。
Officials from the United Nations Environment Programme have held a news conference high in the Himalayas to underline the dangers still facing the ozone layer from carbon compounds known as HCFCs.
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