不定方程

(math.) indeterminate equation

no; not so / (bound form) not; un-

indefinite / indeterminate / (botany) adventitious

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

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

mathematical equation

rule / order / regulations / formula / journey / procedure / sequence