平方反比定律

inverse-square law (physics)

surname Ping

flat / level / equal / to tie (make the same score) / to draw (score) / calm / peaceful / abbr. for 平聲|平声[ping2 sheng1]

square (as in square foot, square mile, square root)

surname Fang

square / power or involution (math.) / upright / honest / fair and square / direction / side / party (to a contract, dispute etc) / place / method / prescription (medicine) / just when / only or just / classifier for square things / abbr. for square or cubic meter

contrary / in reverse / inside out or upside down / to reverse / to return / to oppose / opposite / against / anti- / to rebel / to use analogy / instead / abbr. for 反切[fan3 qie4] phonetic system

inversely proportional / inverse ratio

Belgium / Belgian / abbr. for 比利時|比利时[Bi3 li4 shi2]

euphemistic variant of 屄[bi1]

to compare / (followed by a noun and adjective) more {adj.} than {noun} / ratio / to gesture / (Taiwan pr. [bi4] in some compounds derived from Classical Chinese)

to set / to fix / to determine / to decide / to order

scientific law (e.g. law of conservation of energy) / (in human affairs) a generalization based on observation (e.g. "power corrupts")

surname Lü

law