The airlines still have 2,500 new planes on order.

航空公司还有已订购的2500架新飞机。

《柯林斯英汉双解大词典》

Can we make a change on order No. 29734?

我们可以修改一下29734号订单吗？

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The SAF has 18 NH-90 helicopters on order.

SAF已订购了18架NH-90直升机。

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In nineteen eighty-five, he led the congressional effort to order economic restrictions on South Africa because of its racial separation policy.

VOA: special.2009.09.13

Not on the basis of simple filling in ascending order, but a modified rate of filling as according to the Aufbau Principle.

并不是以简单的升值分布为基础，而是一个修改的填充方法,根据构造原理得到的填充法。

麻省理工公开课 - 固态化学导论课程节选

So, in order to fill our octet, what we do is put two on the nitrogen and two on the carbon.

因此，为了填满我们的“八隅体“,我们需要将两个放到氮上，将另外两个放到碳上。

麻省理工公开课 - 化学原理课程节选

Helped by cheap bank financing, shippers have at least 260 new vessels on order.

FORBES: Magazine Article

With 866 aircraft on order, the 787 Dreamliner became the fastest-selling wide-body jet in history.

ECONOMIST: Business travel

COSCO's planned growth it has 21 new ships on order will bust an already depressed market.

ECONOMIST: Chinese shipping