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NH4 or NH 4 or NH-4 may refer to: * Ammonium, the cation NH4+ in chemistry * National Highway 4 (India), a major National Highway in western and southern India * New Hampshire Route 4, a short state highway located in eastern Strafford County, New Hampshire, United States 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「NH4」の詳細全文を読む スポンサード リンク
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