refine on [upon] one's theory
An optimization of stepping motor subdividing controller is useful and important to enhance subdivision accuracy and to refine on subdivision error.
After30 years, the mature author was able to refine on the work of his youth.
Odd bakelite plastic electrical appliance factory was founded in 1988, at the beginning, namely to "refine on, service first" business philosophy.
Modern medical techniques refine on those of the pass.
She will refine on her Bad points.
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