按100 000英里电线长度除以镜子转动的次数来计算，360度与144度之比是2.5倍，那么每秒时间内电流传输的距离就是250 000英里。
Just as many times 100, 000 miles, as 144 degrees are contained in 360 degrees (the entire circle), viz., two and a half times. Hence, the current travels 250, 000 miles in a second.
按100 000英里电线长度除以镜子转动的次数来计算，360度与144度之比是2.5倍，那么每秒时间内电流传输的距离就是250 000英里。
Just as many times 100, 000 miles, as 144 degrees are contained in 360 degrees (the entire circle), viz., two and a half times. Hence, the current travels 250, 000 miles in a second.
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