| 单词 | crop-head |
| 释义 | > as lemmascrop-head crop-head n. a crop-end cut from that end of a bar of iron or steel which is at the top during the process of cooling and where most of the imperfections occur. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > iron > [noun] > bar of iron > piece cut off bar crop-end1880 crop-head1903 society > occupation and work > materials > derived or manufactured material > metal > steel > [noun] > bar or pig of steel > end cut off bar crop-end1880 crop-head1903 1903 Sci. Amer. 21 Feb. (Suppl.) 22687 The rough ends—‘crop heads’—are cut off and are placed by an electric crane in a car for shipment to any part of the works. < as lemmas |
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