A tiny fraction of the incident alpha particles were deflected through large angles.
极小部分的入射的阿尔法粒子,发生大角度的偏转。
When a brief pulse of electricity is sent to the read/write head it flips on a tiny electromagnet for a fraction of a second.
当一个简单的电脉冲被送到读写头,它会短时间内出现一个小的电磁。
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