chéng qīng
clear (of liquid)
limpid
to clarify
to make sth clear
to be clear (about the facts)
dèng qīng
to settle (of liquid)
to become clear (by precipitation of impurities)
precipitate (chemistry)
to put in order
to quell disturbances
lǎn pèi chéng qīng
to assume one's post with the aspiration of bringing about peace and order to the nation (idiom)