1 ผลลัพธ์ สำหรับ *tdt*

หรือค้นหา: tdt, -tdt-

WordNet (3.0)

terrestrial 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. terrestrial dynamical time, TT, ephemeris time, TDT

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