脫粒機

threshing machine

grain / granule / classifier for small round things (peas, bullets, peanuts, pills, grains etc)

to shed / to take off / to escape / to get away from

to thresh

(bound form) machine; mechanism / (bound form) aircraft / (bound form) an opportunity / (bound form) crucial point; pivot / (bound form) quick-witted; flexible / (bound form) organic