是管件制作和管道施工焊接前管端坡口加工的关键设备。
It's a key machine for pipe fitting forming and pipe end beveling before welded in pipeline construction.
在晶体管发明前，计算机采用真空管作为逻辑原件。
There were computers before the transistor; they used vacuum tubes as logic elements.
这位前亚马逊高管不仅是一位广告达人(这正是雅虎迫切需要的)，而且，显而易见，他对互联网视频业务也非常熟悉。
The former top Amazon executive is ad-savvy (something Yahoo desperately needs) and, obviously, knows a lot about Internet video.
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