Stellarators, though also toroidal, required a more complex (and hard to control) arrangement of magnets.

仿星器虽然也是环形的，但需要更复杂（且难以控制）的磁铁布置。

This torus has a set of toroidal electromagnetic coils wrapped around it, paired poloidal coils above and below it, and a solenoid running through the middle (see panel 1).

这个圆环周围缠绕着一组环形电磁线圈，上下成对极向线圈，中间有一个螺线管（见面板 1）。