WordNet (3.0) WordNet (3.0)
(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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ทราบความหมายของคำศัพท์นี้? กด [เพิ่มคำศัพท์] เพื่อใส่คำนี้พร้อมความหมาย เพื่อเป็นวิทยาทานแก่ผู้ใช้ท่านอื่น ๆ
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