There has not been a big demand for helicopter UAVs, despite the growing number of models available for sale.

对无人直升机没有大的需求，尽管可用于销售型号的数量在增长。

youdao

It's unlikely that he would favor either the aerospace-building systems split or the sale of the helicopter-maker.

所以，不论是拆分还是出售直升机业务，都不太可能得到切尼·维特的支持。

youdao