refine on造句怎么写

She will refine on her Bad points.

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.

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.