Low torque required to drive the load due to high efficiency ball screw.
低扭矩所需的驱动负载，由于高效率的滚珠丝杠。
The rolling-ball coupling is a kind of new and high-efficiency drive part.
滚珠联轴器是一种新型高效的联轴器。
However, due to the excrescent side lobe, the current drive efficiency is lower.
但由于存在多余副瓣，驱动效率较低。
However, due to the excrescent side lobe, the current drive efficiency is lower.
但由于存在多余副瓣，驱动效率较低。
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