轴端
One end of the rotation axle is connected with an electromagnet by a pull rod and a weight rod.
转动轴的一端通过拉杆和重锤杆与电磁铁相连。
The two impellers are arranged at the lower end of the axle sleeve to ensure moderate air-draft amount.
两片叶轮装在轴套下端,确保引风量适中。
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