Sentence:  Note that the mass scale is one to two orders of magnitude greater than some previously <WSD>used</WSD> ; for example , Jacchia ( 1948 ) derived a scale of 0.15 g for a * * f , zero magnitude meteorite . 
Meaning of the word marked with <WSD> tags:  put into service; make work or employ for a particular purpose or for its inherent or natural purpose