This is one of the first aircrafts ever built .

这是最早制造的一驾飞机。

Having a flight crew that is suitable for civil aircrafts , have experienced professional training and obtained licenses or quality training certificates , and meet the prescribed conditions .

有与民用航空器相适应，经过专业训练，取得执照或训练合格证，并具备规定条件的空勤人员。

So the rudder machine is extensively applied in any kinds of aircrafts .

因而广泛应用于各种飞行器中。

We encountered four enemy aircrafts .

我们遇到四架敌机。

All the airline 's aircrafts are leased .

这家航空公司所有的飞机都是租来的。