单词 | leap second |
释义 | leap secondnoun A second which is occasionally inserted into the atomic scale of reckoning time in order to bring it into line with solar time. It is indicated by an additional bleep in the time signal at the end of some years.This would effectively eliminate the leap second that presently is put into effect every year or two....
|
随便看 |
|
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。