单词 | paitung |
释义 | paitungn. A silver-coloured Chinese alloy of copper and nickel, with arsenic or (later) zinc added as a whitening agent. Cf. paktong n. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > copper, zinc, and nickel or imitation silver occamy1596 tutenag1622 paitung1736 paktong1776 German silver1828 electrum1829 albata1833 argentan1847 maillechort1851 nickel silver1860 nickeline1882 melchior1892 1736 R. Brookes tr. J.-B. Du Halde et al. Gen. Hist. China I. 23 The most singular, is the (Pe Tong) White Copper; it is naturally of a white Colour. 1883 S. W. Williams Middle Kingdom II. 19 The pehtung, argentan, or white copper of the Chinese is an alloy of copper, zinc, nickel and iron;..these proportions are nearly the same as German silver. 1944 Jrnl. Amer. Oriental Soc. 64 220 Khārṣīnī..is the Islamic term for pai-t'ung, a composite ore of copper, zinc, nickel, and some impurities which is found in the native state of the Yunan province. 1957 Amer. Jrnl. Archaeol. 61 361 All evidence suggests that paitung-white copper of the early days was a cupro-nickel alloy derived from Hweili,..in which after the 17th century zinc replaced arsenic as a whitening element, with considerable improvement in malleability. 1991 N.Y. Times (Nexis) 23 June 45 In Yunan and Szechwan, the Chinese had been using a hearth and bellows furnace to heat charcoal to such a temperature that nickel sulphite ore was reduced to an alloy called white copper or ‘pei tung’. This is a new entry (OED Third Edition, March 2005; most recently modified version published online March 2022). < n.1736 |
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