The key is using magnetic and electric fields, instead of matter, to construct the walls of an antimatter "bottle."

这套设备的关键之处在于使用了电磁场的而不是普通物质来捕捉反粒子，电磁场犹如一道墙，把反物质牢牢地束缚在“电磁瓶”内。

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All this happened inside a magnetic bottle that traps the antihydrogen atoms.

这一切都发生在一个俘获反氢原子的磁瓶里。

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As the height of the magnetic barrier is slowly lowered, the fastest atoms leave the bottle and the remaining gas rethermalizes via elastic atomic collisions at lower and lower temperatures.

由于磁化空腔的效能慢慢降低，那么那些速度还很快的原子就很容易逸出，而其余的气体粒子在不断的碰撞中消耗能量，使得温度降低。

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It will also cause the magnetic bottle to overflow and emit a stream of plasma through a special outlet.

ECONOMIST: Nuclear waste

At such temperatures atoms are stripped down to their electrically charged components, so the helium created by fusion remains within the magnetic bottle.

ECONOMIST: Nuclear fusion

The energy released in fusion is carried mostly by neutrons, a type of subatomic particle that has no electric charge and hence cannot be confined by the magnetic bottle.

ECONOMIST: Fusion power: Nuclear ambitions | The