理想的螺旋扇结构中，粒子除受到与直边扇形类似的磁场沿方位角调变形成的分量Bθ与离子速度的径向分量作用产生的托马斯轴向聚焦力外，还受到两个额外的聚焦力——螺旋扇磁极边缘弯曲形成的方向沿着径向或反径向。
这个时间是你们可以用你们美妙的新发现的聚焦力来想象这个领域被变更的方式。
This time is when you can use your wondrous newfound focus to envision how this realm is to be altered.
他只在早上写作，那是他注意力聚焦的重点高峰期，而随后的下午只是专心于那些有趣的项目——通常是需要他自己双手参与的。
He writes only in the morning, when his focus is at its peak, and then spends the afternoons working on interesting projects - typically things that require the use of his hands.
限制你们的谈话，把注意力聚焦于快乐的感受，交谈太多有损于效果。
Limit your conversation and focus on the pleasurable sensation, too much talking will diminish the effect.
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