... 封闭式印刷机组enclosed printing unit 封底fourth cover封底cover back ...
双语例句
1
The net benefit translates to a 0.75% boost to permanent employment in Germany, enough to cover the entire increase in the country’s employment between the fourth quarter of 2007 and the end of 2009.
德国政策本身增加了0.75%的永久就业，这已经是德国07年第四季度到09年底增加的就业率总数。
2
By the way, where is the fourth engineer We'll have to test the hydraulic hatch cover with him.