The traditional MRI unit is a large cylinder-shaped tube surrounded by a circular magnet.
传统的核磁共振装置是由一圆形磁铁包围的大型圆管。
That means a magnet has to nudge the protons to enter the circular beam pipe on the tangent.
这意味着必须设置一个磁铁，以便调整质子束方向以保证沿着切向方向导入圆形粒子束管道。
Magnetic working substance clings to two circular arcs of rotor guide magnet center.
磁工质紧贴在转子导磁铁心的两个圆弧面上。
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