| 单词 | face-harden |
| 释义 | face-harden[ feys-hahr-dn ] / ˈfeɪsˌhɑr dn / verb (used with object)to harden the surface of (metal), as by chilling or casehardening. Origin of face-hardenFirst recorded in 1895–1900 Words nearby face-hardenfacecloth, faced, facedown, face flies, face gear, face-harden, face it, faceless, face-lift, facemail, face mask Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for face-hardenface-harden verb(tr) to harden the surface of (steel or iron) by the addition of carbon at high temperature 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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