isobar

isobar
[ˈʌɪsə(ʊ)bɑː]
noun

(Meteorology)a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period. Physics a curve or formula representing a physical system at constant pressure
(气象)等压线
(Physics)each of two or more isotopes of different elements, with the same atomic weight
(物理)同量异位素

派生
isobaric
adjective
语源

mid 19th cent.: from Greek isobaros 'of equal weight', from isos 'equal' + baros 'weight'

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