| 单词 | robertson screw |
| 释义 | Robertson screw/ (ˈrɒbətsən) / nountrademark a screw having a square hole in the head into which a screwdriver with a square point (Robertson screwdriver (trademark)) fits Word Origin for Robertson screwC20: after its inventor P. L. Robertson (1896–1951), a Canadian industrialist Words nearby Robertson screwRobert II, Robert III, Roberts, Robertson, robertsonian translocation, Robertson screw, Robert's pelvis, Robert's Rules of Order, Robeson, Robeson, Paul, Robespierre 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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