日期:
来源:雅诚德英语网
The atom vibrates between two energy levels allowing the clocks accuracy down to a second in 3.7 billion years.
原子在两个能量等级之间震荡,所以钟的精确度为运行37亿年后误差不超过正负一秒。
The atom vibrates between two energy levels allowing the clocks accuracy down to a second in 3.7 billion years.
原子在两个能量等级之间震荡,所以钟的精确度为运行37亿年后误差不超过正负一秒。