螺旋桨

The timing of the gun was precisely synchronized with the turning of the plane’s propeller.

风门的调速与飞机螺旋桨的精确同步。

The propeller started to spin around.

螺旋桨开始飞快地旋起来。

The ship's screw stopped.

那船的螺旋桨停止。

First came the turbojet, now obsolete, then the turboprop, which is still found onboard small planes.

最开始的引是涡轮喷射，已淘汰；然后是涡轮螺旋桨引，现在仍可在小飞机上看到。