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H2O2 : 1）《化》過酸化水素
H2O : 1）《化》水
HNO3 : 1）《化》硝酸
HOW : 1）howitzer りゅう弾砲
H2SO4 : 1）《化》硫酸
H2S : 1）《化》硫化水素
HCO3 : 1）《化》炭酸水素塩 2）《旧》重炭酸塩
HMO : 1）health maintenance organization (米国の)健康医療団体
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H2O2

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