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I was wondering what "in" stands for if we talk about pressure units? I believe that mb = mili bars = hPa. With this assumption there's something strange about it. I took 2 diffrent WOEID's for each using u=c and then u=f and results were following

  1. 982.05 [mb], 29.88[in]
  2. 1017.30[mb], 29.09[in]

First ratio is 32,866465863453815261044176706827

Second ratio is 34,97078033688552767273977311791

  • Where this difference comes from. Does api take into consideration temperature or something else,
  • What are those "in" anyway,
  • Does anybody know exact formula which yahoo weather api use to conversion
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“in”代表英寸汞柱 (Hg)，“mb”代表毫巴

于 2014-10-16T13:40:23.510 回答