Unlike the blades on old-fashioned propeller engines, these blades spin around at the back of the engine.
与老式螺旋桨发动机的叶片不同，这些叶片在发动机的后部旋转。
2
A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton.
连接在蒸汽机上的旋转式发动机使轴承转动，机器得以驱动，从而使得利用蒸汽动力纺线和织布的工厂出现。
3
When the Volt's battery pack is discharged, the 1.4-liter gas-powered four-cylinder engine kicks on to spin the 74-hp generator.