An X ray analysis apparatus has {TAIL ~ information} about a relationship between selection of a measurement type and a replacement work of optical parts and shows, on {HEAD ~ a screen} of a display, graphical information about optical parts which should be changed, to make it easy for an operator to perform a preliminary work before measurement 
An X ray analysis apparatus has { TAIL ~ information } about a relationship between selection of a measurement type and a replacement work of optical parts and shows , on { HEAD ~ a screen } of a display , graphical information about optical parts which should be changed , to make it easy for an operator to perform a preliminary work before measurement
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