In this paper,the mechanism of workpiece burn during grinding of casehardened steel and titanium alloys was studied by the use of SEM,EPMA,XPS and the metallograph analysis.
Many of the best gaming machines were anywhere from $900 - $5,000, with some reviewers saying the best of the budget gaming PCs was the Dell XPS Tower SE at around $550.
许多好装置价格都在900-5000元之间,一些评论好经济型 PC 电脑是戴尔 XPS Tower SE,其价格约550元。
If I would buy a new computer, that would certainly be a Dell XPS, especially because it has a high functionality, an ample RAM, and also a good graphic card for which it will help me in programming.