英语词汇“ephemeris time”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ephemeris time
释义	ephemeris time noun Time on a scale defined by the orbital period rather than the axial rotation of the earth.When ephemeris time does become relevant is when our questions are on general indications over long periods of time, or when we wish to look beyond the immediate limits imposed by the question to see what may happen over a longer period.... Leap seconds are inserted only for human convenience, and eclipse phenomena are computed using astronomers' dynamical or ephemeris time systems.
随便看	charmlessness charm offensive charmonium charm school charnel charnel house Charolais Charon Charophyta charophyte charpoy charr charrette charro chart chartaceous chartbuster charter chartered charterer charter flight charterhouse Charter Mark charter member charter party

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。