例句與造句

1. The engine drove two wingtip-mounted fiberglass tilting ducted fan tail.
2. The Boeing " PhantomSwift " embedded twin lifting fans inside the fuselage with tilting ducted fans mounted on wingtips for lift and forward thrust; a scale demonstrator was built and flown by the company in 2013.
3. It's difficult to find tilting ducted fan in a sentence. 用tilting ducted fan造句挺難的