用ducted fan造句子，“ducted fan”造句

In testing, the Jetpack could travel at 60 miles per hour for up to 30 miles, and as high as 7, 800 feet using a gas engine and two ducted fans.

Applications:Good for 1:18 on road car, ducted fan power and with gearbox for high efficiency power system.

This second system consists of four ducted fans, one mounted at each corner of Talaris's carbon-fibre frame.