| 单词 | buttress thread |
| 释义 | buttress threadnouna screw thread having one flank that is vertical while the other is inclined, and a flat top and bottom: used in machine tools and designed to withstand heavy thrust in one direction Words nearby buttress threadbuttony, butt plate, buttress, buttress plate, buttress root, buttress thread, butts and bounds, butt shaft, buttstock, buttstrap, butt stroke Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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