ephemeris time
A small coastal village and civil parish (without a council) in East Suffolk district, Suffolk, England, previously in Suffolk Coastal district (OS grid ref TM4770).
(astronomy) A former standard astronomical time scale intended to overcome the drawbacks of irregularly fluctuating mean solar time, superseded in the 1970s.
The functional unit in a salivary gland, consisting of all the secretory cells that release their products into a single intralobular duct.
(intransitive, Australia, informal) To make such a call.
天文学者たちは、かつて太陽平均時の不規則な変動の欠点を克服するために導入された天文時標準であるエフェメリス時を、1970年代に置き換えられる前に計算に用いていた。
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