| 单词 | jy |
| 释义 | > as lemmasJy Jy n. Astronomy jansky. ΘΚΠ the world > the universe > cosmology > astronomy > [noun] > radio astronomy > unit used in jansky1966 Jy1974 1974 Nature 6 Sept. 36/1 The receiver..was also calibrated at five hour intervals by observing 3C147 (assumed flux density 9.3 Jy). 1987 P. Moore Astron. Encycl. 216/3 One jansky,..Jy, is equal to 10−26 watts per square metre per hertz. < as lemmas |
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