X字开头的单词或词组
XPSxenopsinxenograftxistorxanthan gumX-sectionXMPX-filmXimeniaX RemotexanthinxerotripsisX-componentxylocarpxylanxenophoniaxenophobiaxenophobeXNSXANESxerosinx-ray platesx raysxyleninxtalx-ray tubeXmodemxanthousxylonXenopusX-ray filmxanthoproteic indicesxanthalinexerophytexenolxanthorrhoeaxiphinX-coordinateXEDITxantho-XinhuaX particle