X字开头的单词或词组
xylyl hydrazineX-ray fluorescencex-ray's photographyxyloquinonexanthochroiaXylosma racemosum O. KuntzeX-ray absorption near edge structurexiphopagusxanthopsinxyphoidX-ray-transmitting glassxanthosine (X,Xao)xanthenyl-carboxylic acidxylotomousxylulokinasexanthofibroma thecocellularex punchx-ray tablexyloidinxanthophoreX-windowxanthoprotein reactionxanthurenic acidxenenexanthophanexiphoidalgiaxylosidoglucosexipho-xanthosarcomaX-ray structure analysisX-ray fluorescence spectrometerxylylolxy recorderxylyl-mercaptanxylyl alcoholxerasiax-bandX.25 networkXanthoxylum ailanthoidesxylostyptic etherxylylaminex-ray tubes