jack engine in unit 插换部件
The house that Jack built ended 2009 by selling a controlling stake in its NBC Universal entertainment unit to Comcast, a deal that valued the new entity at billion.
2009年年末,这家杰克? 韦尔奇创办的公司其下属娱乐公司——NBC环球的控股权卖与康卡斯特公司,此项交易对新NBC环球的估值为370亿美元。
In the strength analysis of the pumping jack of a pumping unit, it is very difficult to determine the reference node position under global coordinate system.
在抽油机支架强度分析中, 在全局坐标系下确定主惯性平面方位的参考节点的位置非常困难。
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