enclosed propeller shaft

例句：

1. 1. The aircraft's engine is powered by an enclosed propeller shaft.
   飞机的引擎由一个封闭的螺旋桨轴驱动。
2. 2.The engineer carefully inspected the enclosed propeller shaft for any signs of wear.
   工程师仔细检查了封闭的螺旋桨轴，以查看任何磨损的迹象。
3. 3. The maintenance crew replaced the damaged enclosed propeller shaft with a new one.
   维修团队用一个新的封闭的螺旋桨轴替换了损坏的部件。