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单词 terrestrial dynamical time
释义
terrestrial dynamical time
(extremely rare)
n

WORD FAMILY
terrestrial dynamical time
n (astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions
Syn|Hyper
TDT, TT, ephemeris time, terrestrial time
time unit, unit of time
a unit for measuring time periods
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