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单词 metric ton
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metric ton
metric ton n. = tonne n.
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the world > relative properties > measurement > measurement by weighing > [noun] > unit or denomination of weight > metric gram(me) > kilogram > metric ton or one thousand kilos
metric ton1864
tonne1877
1864 Jrnl. Statist. Soc. 27 468 For statistical purposes it is convenient to take one unit, the metric ton.
1898 Econ. Jrnl. 8 315 The coal consumption of Hungary rose from 3,900,000 metric tons in 1890 to 5,500,000 in 1894.
1924 Times Trade & Engin. Suppl. 29 Nov. 238/3 The output of certain important goods has considerably increased:..sugar to 318,987 metric tons, against 270,279.
1957 G. E. Hutchinson Treat. Limnol. I. viii. 546 A quantity of salt of the order of 100,000 metric tons per year is transported.
1973 Guardian 25 Jan. 7/5 The Government yesterday took a hard line with newsprint manufacturers by allowing increases of only £2 a metric ton (tonne).
1990 Sci. Amer. Apr. 46/2 A body whose mass is more than 1,000 metric tons careers through the atmosphere practically unhindered.
extracted from metricadj.2n.2
metric ton
a. A measure of weight, now generally 20 cwt.; in Great Britain legally 2240 lbs.; in the United States and elsewhere, for most purposes 2000 lbs. ‘Tons’ of different amounts were formerly in use and are still so locally for some commodities. (Where two weights are so known and used, the heavier is distinguished as the long or gross ton and the lighter as the short ton.) metric ton (French tonne) = 1000 kilogrammes (2204·6 lbs. avoirdupois).
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the world > relative properties > measurement > measurement by weighing > [noun] > unit or denomination of weight > ton
ton1485
ton weighta1855
1485 in H. E. Malden Cely Papers (1900) 183 Item the sam day payd for vj toun of balast, ij s.
1539 in R. G. Marsden Sel. Pleas Court Admiralty (1894) I. 89 lxxj kintalls of yron in ends 44... And it goes for iij tone and xj kintalls.
1545 Rates Custome House sig. bv Iron called Lukes Iron the tonne conteynynge .xx. C. pounde iii.l. vi.s. viii.d.
1592 R. Greene Pandosto (new ed.) sig. Bv A pound of gold is worth a tunne of lead.
1670 J. Eachard Grounds Contempt of Clergy 115 Unless we had some vent for our Learned Ones beyond the Sea, and could transport so many Tun of Divines yearly, as we do other Commodities with which the Nation is over-stocked.
1725 R. Bradley Chomel's Dictionaire Œconomique (at cited word) Tun, a Measure in Averdupois, consisting of twenty hundred Weight, each Hundred being a Hundred and twelve Pounds.
1793 J. Smeaton Narr. Edystone Lighthouse (ed. 2) §154 Every thing stood fast with eight ton weight upon the tackle-blocks.
1829 S. Glover Hist. County of Derby I. 100 It [pure white gypsum] sells at 10s. per long ton. (Note.—120 lb. to the Cwt.)
1829 S. Glover Hist. County of Derby I. 265 It was agreed that weighing-houses should be erected upon the several canals, and that the ton should be fixed at 2,400 lbs.
1858 P. L. Simmonds Dict. Trade Products 383/2 In Great Britain, the legal ton by weight is usually 20 cwt., or 2240 lbs., but in long weight it is 2400 lbs... In Cornwall, the miner's ton is 21 cwt., or 2352 lbs.
1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 186 s.v. For many things, such as coal and iron, the ton in use [in U.S.] is the long ton of 20 hundred~weight at 112 pounds avoirdupois... In gold and silver mining, and throughout the Western States, the ton is the short ton of 2000 pounds.
1894 Times 10 Sept. 6/1 The total quantity which exploded was about 3,700 lb., or not far short of two tons, 2,000 lb. being reckoned as a ton in measuring explosives.
extracted from tonn.1
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