A child sees persons with whom he lives using chairs, hats, tables, spades, saws, plows, horses, money in certain ways. 约翰·杜威.民主与教育.
A powerful steam traction engine of fifty horse power hauls across the field a planting combination of sixteen ten-inch plows, four six-foot harrows and a seeding drill in the rear. Edward W. Byrn.十九世纪发明进展.
In agriculture, the reaper has been supplemented with threshing machines, seeders, drills, cultivators, horse rakes and plows. Edward W. Byrn.十九世纪发明进展.
Traction engine pulling sixteen 10-inch plows, four 6-foot harrows, and a drill. Edward W. Byrn.十九世纪发明进展.