X字开头的单词或词组
xanthophosexanthoproteicXMS memory lockedxylene tetrachloridexylenol carboxylic acidX-ray microscopeX-ray absorptionxenolithsxenon monohalidexylotherapyX-ray fluorescence analysisxanthoproteic testxanthoproteinxpmxylidenesxylose clearance testxylylchloridexanthydrol reactionxylene monosulfonic acidX-ray luminescencexanthine testxanthocystinexanthomatous cirrhosisxenon tetrafluoridexylylene bromidexenoplastic transplantationxyloxylylene dichloridesxenicxerosis epithelialis corneaexerosis infantilisxylose isomerasexylose tolerance testxanthoplastyxanthinoxidasexanthodontxvtx-heightxanthinol niacinatexenon flash lampxylosuriaxyloascorbic acid
