“河西四郡”的概念、定义、翻译、参考文献-科学参考

单词	河西四郡
释义	河西四郡 Encyclopedia 理学河西四郡释 Hexi Sijun河西四郡中国两汉时期设在河西走廊酒泉（今属甘肃）、张掖（今属甘肃）、敦煌（今属甘肃）、武威（今属甘肃）四郡的总称。
随便看	ammonium chloride crystallizer ammonium dibutyl dithiophosphate ammonium diuranate ammonium ferric citrate ammonium ferric sulfate dodecahydrate ammonium hydrogen carbonate ammonium hydrosulphide ammonium hydroxide ammonium hydroxide; ammonia solution; ammonia water; ammonical liquor; aqueous ammonia ammonium iron alum ammonium iron ( II ) sulfate hexahydrate ammonium iron sulfate hexahydrate ammonium iron ( Ⅱ ) sulfate hexahydrate ammonium metatungstate ammonium metavanadate ammonium nitrate ammonium nitrte ammonium paratungstate ammonium perchlorate ammonium peroxydisulfate ammonium persulphate ammonium phosphate ammonium phosphate fertilizers ammonium phosphate sulfate ammonium polyphosphate

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