这个行为虽然看起来很诡异，但事实上要使电子反抗外加电场及磁场的“推力”，道理却相当简单。
Although this behavior might seem paradoxical, it is actually quite a simple matter to make electrons oppose the "push" of the applied electric and magnetic fields.
分配箱特殊设计，推力轴承格外加大，轴承采用原装进口，传动寿命高，可承受更大挤出压力。
The distribution box is specially designed, pull force bearing is fully imported, the drive life span can be prolonged. It can bear larger extruding pressure.
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