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单词 per mil
释义

per miladv.

Brit. /pə ˈmɪl/, /pəː ˈmɪl/, U.S. /pər ˈmɪl/
Forms: 1600s 1800s– per mille, 1700s– per mill, 1800s– per mil, 1900s– permil, 1900s– permill, 1900s– permille.
Origin: Formed within English, by compounding. Etymons: per prep., English mil , mille n.1
Etymology: < per prep. + mil, variant of mille n.1, probably after per cent adv.The solid forms (permil, etc.) occur chiefly in scientific use.
In or for every thousand, per thousand: with preceding numeral (stated or implied), expressing a proportion.In modern use denoted by the symbol ‰.
ΘΚΠ
the world > relative properties > number > ratio or proportion > [noun] > submultiples
under-treble1430
under-triplat1430
under-triple1430
per mil1682
permillage1869
the world > relative properties > number > specific numbers > hundred and over > [adverb] > thousandfold > per thousand
per mil1682
1682 J. Scarlett Stile of Exchanges 135 For Courtagie of Exchanges, whether in drawing or remitting, usually one per mille is allowed for Provisions for drawing and remitting, each half per cent.
1721 C. King Brit. Merchant I. 294 Ox-bones | 30400 | 0.6.8 per Mill | 10.2.8.
1753 J. Hanway Hist. Acct. Brit. Trade Caspian Sea II. xxix. 179 Koeningsburg draws in current money, 1 per mil, according to custom, being deducted.
1842 U.S. Mag. & Democratic Rev. Sept. 319 The customary premium of 1 per mill, or about 1-8 of one per cent. on gold in Paris.
1875 W. S. Jevons Money xii. 147 Even Japan has imitated European nations, and introduced a gold coinage of twenty, ten, five, two, and one-yen pieces, the yen being only three per mille less in value than the American gold dollar.
1902 Encycl. Brit. XXXI. 404/2 The bottom waters have almost uniformly a salinity of 34·8 per mille, corresponding closely with the bottom waters of the south Atlantic.
1933 S. W. Cole Pract. Physiol. Chem. (ed. 9) xiv. 364 One per mille soluble starch in 0.5 per cent. sodium chloride.
1947 D. N. Davies in P. I. Smith Pract. Plastics xi. 163/1 The breakdown voltage of an insulating material is usually expressed in volts per mil.
1957 A. Grimble Return to Islands 102 Perhaps five or six per mil of his parishioners at most.
1997 Acta Paediatrica 86 1214 The incidence..increased significantly from 1.4 per mill in 1980 to 2.3 per mill in 1994.
2002 Aquaculture 211 195 Salinity 25 permill; pH 8.3.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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adv.1682
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