备用的

Included in the transaction are three nonflying TP-3A aircraft to used as airframe spares and extra T-56 engines to support the 12 flyable aircraft.

这次交易包括三架不能飞的TP-3A飞机进行机身备用，以及额外的T-56发动机以支持12架可驾驶飞机。

There is a small box which contains an extra earpick and a clip.Open the side cover and put the earpick in, turn on ultraviolet ray to sterilize the earpick by pushing the switch backwards.

从开侧盖把取下的耳放入侧的储物匣内，（匣内还有一个耳子是备用）把侧的开关往后推，后的紫外线灯开，这时可对刚使用的耳进行减单消毒。