| 单词 | mottled iron |
| 释义 | > as lemmasmottled iron mottled iron n. a form of iron intermediate between white and grey iron, containing part of its carbon in the form of graphite. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > iron > [noun] > type of iron > cast iron > other types of cast iron grey iron1665 white iron1665 run metal1741 white cast iron1792 mottled iron1836 tender-floss1839 pot metal1854 semi-steel1858 silicon iron1878 white-heart1911 white-heart1928 1836–41 W. T. Brande Man. Chem. (ed. 5) 763 Gray or mottled-iron is softer and less brittle. 1884 W. H. Greenwood Steel & Iron iv. 48 The characteristic dappled appearance peculiar to mottled iron. 1946 V. N. Wood Metall. Materials viii. 220 When the combined carbon content is considerably in excess of 0.89 per cent, we have the mottled irons which are partly white and partly grey in fracture. < as lemmas |
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