X字开头的单词或词组
X-ray spectrochemical analysisxanthoproteic reactionxylidic acidxylopinineX-type grooveXanthoxylum Gmel.xeroradiogrphyX-ray diffraction patternxanthydrylX.25 interfacexanthine bodiesxiphisternalX-ray fluorescnece analysisX-ray proof rubberxylene halidexanthylic acidxylem raysxanthomycinxenon trioxidexerographic materialXylosma Forst. f.xanthylicX-ray diffractometryx-ray photographyxavierXiaoqujiuxiphisternal crunching soundxylographerxylyl bromidexanthoma tuberosumxenon oxidexyloketosexylosteinxanthematinxanthic amidexanthydrolxerographx-ray diffraction cameraX-ray photon spectroscopyx-ray spectrumxylene muskxylylene cyanides
