To design the mechanical and auto-control system, the worm wheel is used to drive the outer annular magnet.

在机械及控制系统设计中，由于磁体需套装在单晶炉上，因此采用了蜗轮蜗杆机械驱动外磁环转动的机械结构。

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The annular magnet is embedded into an inner cavity of the rubber ring, the plastic cover disk is covered at the back face of the rubber ring.

将环形磁铁嵌入橡胶圈的内腔中，再将塑料罩盘盖在橡胶圈的背面。

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