单词 | mechanical twin |
释义 | > as lemmasmechanical twin mechanical twin n. Metallurgy a twinned crystal produced by mechanical deformation. ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > crystal irregularities > [noun] > processes causing > mechanical twinning > resulting formation mechanical twin1923 1923 R. Glazebrook Dict. Appl. Physics V. 344/1 These internal stresses cause internal straining of the metal, which in turn causes the formation of numerous mechanical twins. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VIII. 293/1 Typical phenomena observable are...effects of deformation—strain markings,..mechanical twins, and microcracks. < as lemmas |
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