你即將離開本站

並前往https://www.nature.com/articles/210187a0

Atomic Standards of Frequency and the Second of Ephemeris ...

... of an integrated measure of atomic time based on the frequency of the caesium transition with the measure of ephemeris time (E.T.) as determined by ...

確定！ 回上一頁

查詢 「Ephemeris Time」的人也找了：

  1. ephemeris time calculator
    2.
  2. ephemeris time converter
    3.
  3. Ephemeris Time
    4.
  4. ephemeris time to utc
    5.
  5. ephemeris time spice
    6.
  6. TT time
    7.
  7. Tdb time
    8.
  8. Solar time
    9.