2·There is no clutch, gearing, oil changes, smog check, pistons, rings, valves, crankshaft, flywheel, rods, wrist pins, etc. , etc.
没有离合器，传动装置，机油变化，尾气检查，活塞，活塞环， 阀门，曲轴，飞轮，连杆，肘节销，等等。
3·Sometimes it is necessary to change gearing when you change motors because of each motor's specific performance characteristics.
有时是必要的时候，你改变，因为每个发动机的具体性能特点马达来改变传动装置。
4·Position, speed, torque, and phase control such as electronic gearing and electronic cam profiles are available for complex motion.
位置、速度、扭矩和相位控制，如电子传动装置和电子凸轮轮廓在复杂的运动中也可以获得。