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首頁英語詞典siderealsidereal英英釋意

sidereal

英 [sa?'d??r??l] 美[sa?'d?r??l]
  • adj. [天] 恒星的；根據(jù)星球運行測定的

英英釋意

1. of or relating to the stars or constellations;
"sidereal bodies"
"the sidereal system"
2. (of divisions of time) determined by daily motion of the stars;
"sidereal time"