三等分

trisection (math.) / trisecting an angle

three / 3

class / rank / grade / equal to / same as / to wait for / to await / et cetera / and so on / et al. (and other authors) / after / as soon as / once

division into equal parts / equipartition

division into equal parts; equipartition

to divide; to separate / to distribute; to allocate / to distinguish (good and bad) / (bound form) branch of (an organization); sub- (as in 分局[fen1 ju2]) / fraction / one tenth (of certain units) / unit of length equivalent to 0.33 cm / minute (unit of time) / minute (angular measurement unit) / a point (in sports or games) / 0.01 yuan (unit of money)

part / share / ingredient / component

trisection (math.) / trisecting an angle