X字開頭的單詞或詞組
X-ray diffractometerxeromeniax-ray beamx-rays tubexanthochromicxanthine basesx-ray paperxiphixantheinX-ray photographxanthodermx-ray generatorxerophthalmiaX-ray diffraction analysisxerocheiliax-wavexerocotyxenogamyxenomeniaX-ray fluorescence anaiysisX.25 protocolX-ray crystallographyxylanasexylindeinx-ray shortxenbucinX.25xerodermaticximenynic acidxerostomiaxeroderma pigmentosumxiphisternal jointsx-ray spectroscopyX-ray peak broadeningxerodermaxylonitexysterX-ray testxanthochromiaxanthocytexerographicx-ray target
