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X-ray absorption fine structure
X-ray absorption spectroscopy'
X-ray astronomy
X-ray background
X-ray computed tomography
X-ray crystal truncation rod
X-ray crystallograph
X-ray fluorescence
X-ray generation
X-ray generator
X-ray image intensifier
X-ray magnetic circular dichroism
X-ray microscope
X-ray nanoprobe
X-ray optics
X-ray photoelectron spectroscopy
X-ray pulsar
X-ray reflectivity
X-ray scattering techniques
X-ray spectroscopy
X-ray standing waves
X-ray telescope
X-ray tube
Xi baryon
Εγκυκλοπαίδεια Διαστημικής Τεχνολογίας
Hellenica World - Scientific Library