英语语法分析

The shaft is splined to lock into the disc to ensure positive rotation.

阀杆用花键锁在阀瓣上，以确保旋转灵活。

Since the axle shafts are splined to the side gears the shafts lso rotate.

由于半轴通过花键与半轴齿轮连接，从而半轴也转动。

SunTour's Perfect freewheel was a first class design with three splined sprockets and two or three threaded sprockets.

山图的完美飞轮是一位有三个花键链轮和两个或三个线程链轮一流的设计。