这架飞机的螺旋桨出了点问题，正在维修。
The propeller of the plane is out of order, and is under repair.
这是一架有八个座位的双螺旋桨飞机。
第一架飞机是由螺旋桨驱动的，要比当今的标准飞得慢得多。
The first aeroplanes were driven by propellers and they flew slowly by present day standards.
这架四叶螺旋桨直升飞机是由装在iPhone里的软件控制的。
The four-propeller helicopter is controlled by software installed on the iPhone.
飞机的推力由螺旋桨所产生。
The thrust force of an airplane is produced by the propeller.
常规的螺旋桨设计理论主要是针对大型飞机的。
The conventional theory of propeller design is mainly for large aircraft.
常规的螺旋桨设计理论主要是针对大型飞机的。
The conventional theory of propeller design is mainly for large aircraft.
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