continuous tooth double-helical gear

例句：

1. 1.The continuous tooth double-helical gear is a crucial component of the transmission system.
   连续齿双螺旋齿轮是传动系统的关键部件。
2. 2.In this machine, the continuous tooth double-helical gear is used to transmit power from the motor to the wheels.
   在这个机器中，连续齿双螺旋齿轮被用来将动力从电机传递到车轮。
3. 3. The continuous tooth double-helical gear has been designed to improve efficiency and reduce wear.
   连续齿双螺旋齿轮已经被设计来提高效率并减少磨损。