为了克服以上磁场的缺陷,人们提出 了一种较为先进的非均匀磁场2勾形磁场 ( cusp magnetic field) 。该磁场的磁力线分布是以线圈中心轴线及 中心面上下为对称,兼有径向和纵向分量的发散型磁场。
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This is because it is at the cusp that magnetic field-lines stream down towards the ground, acting as paths for electrons and protons that have slipped past the bow shock.
这是因为磁场线圈是在尖端的地方流向地面的，这些线圈的作用是为那些流失并超越弓形波的电子与质子提供通道。
In this paper, the device of plasma arc restricted by cusp type magnetic field is designed. The machining experiments of plasma arc restricted ny magnetic field is done.
本文设计出尖状磁场约束等离子弧的装置，进行了磁场约束等离子弧的加工实验。
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