x ray diffraction
x-ray stress
x-ray
x-ray analysis
x-ray densitometory
x-ray densitometry
x-ray diffraction
x-ray diffractometry
x-ray fiber diagram
x-ray fluorescence analysis
x-ray microdensitometry
x-ray photoelectron spectroscopy
x-ray stress measurement
XAFS
XPS
XRD
xylan
xylanase
xylanase induction
xylem
xylem differentiation
xylem discoloration
xylem formation
xylene
xylobiosylglycerin
xyloglucan
xylooligosaccharide
xylose
xylosidase
xyloside
xylosyltransferase