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H2SO4 : 1）《化》硫酸
H2O2 : 1）《化》過酸化水素
H2S : 1）《化》硫化水素
H2O : 1）《化》水
HO : 1）head office 本社、 Home Office 《英》内務省
HOW : 1）howitzer りゅう弾砲
HMS : 1）His/Her Majesty's Service ?、 His/Her Majesty's Ship 英国の軍艦
HMO : 1）health maintenance organization (米国の)健康医療団体
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H2SO4

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