) Its reaction chamber is a hollow torus which contains the plasma.

）它的反应室是一个包含等离子体的空心环面。

A population of 10,000  colonists could occupy the tube's inner ring, where cars and homes are held in place  by the torus's rotational gravity.

10,000 名殖民者的人口可以占据管道的内环，汽车和房屋被环面的旋转重力固定在适当的位置。

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）。

Here in Oxford, you'll find arguably the most successful fusion experiment on Earth, JET, the Joint European Torus, torus being the technical term for donut, which is how the reactor's shaped.

在牛津，你会发现可以说是地球上最成功的聚变实验， JET，欧洲联合环面，环面是甜甜圈的技术术语， 这就是反应堆的形状。