
건축업자는 공사를 계속하기 전에 기초가 완벽하게 평평한지 확인했다.


건축업자는 공사를 계속하기 전에 기초가 완벽하게 평평한지 확인했다.


A large machine tool in which the workpiece is traversed linearly (by means of a reciprocating bed) beneath a single-point cutting tool. (Analogous to a shaper but larger and with the workpiece moving instead of the tool.) Planers can generate various shapes, but were most especially used to generate large, accurate flat surfaces. The planer is nowadays obsolescent, having been mostly superseded by large milling machines.
