针对原减速器出现的问题，加装了电动机制动装置，减少了对减速器的冲击，使减速器的使用寿命大大延长。
Moreover, the additional motor brake reduces the impact to the decelerator and makes the service life of the decelerator lengthen greatly.
它们可以滑过使它们减速的涡流，然后通过“推开”涡流获得额外的推力。
They can glide past eddies that would slow them down and then gain extra thrust by "pushing off" the eddies.
这大幅增加了球的阻力，使它减速更甚。
This substantially increased the drag on the ball, which made it slow down even more.
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