isobar

名词 isobar:

1. (meteorology)an isogram connecting points having equal barometric pressure at a given time

i.so.bar

n.（名词）
A line on a weather map connecting points of equal atmospheric pressure.Also called isopiestic
等压线：气象地图上联结气压相同的各点的联线也作 isopiestic
Any of two or more kinds of atoms having the same atomic mass but different atomic numbers.
同量异位素：两种或各多种有相同原子质量但却有不同的原子序数的原子中的任一种

来源：
iso-
iso-
Greek baros [weight] * see g wer…-
希腊语 baros [重量] *参见 g wer…-

【引伸】
i.sobar.ic