Англо-русский строительный словарь. 2013.
gangmill — /ˈgæŋmɪl/ (say gangmil) noun a sawmill in which several saws, fitted in a reciprocating frame, cut simultaneously …
gangsaw — /ˈgæŋsɔ/ (say gangsaw) noun one of the several blades fitted in a frame forming part of a gangmill. Also, framesaw …