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单词 jud
释义

judn.

Brit. /dʒʌd/, U.S. /dʒəd/
Forms: 1800s judd, 1800s– jud.
Origin: Of unknown origin.
Etymology: Origin unknown. Perhaps compare jad n.
Chiefly Coal Mining.
1. A large block of coal which has been undercut and from which some coal has been removed, leaving it ready for breaking down; (also) a portion of a pillar left after some of the coal has been removed. Now chiefly historical.
ΚΠ
1828 T. Wilson Pitman's Pay in Newcastle Mag. Jan. 16 How nice and funny it wad be To sit and see yen's jud myed ready.
1884 Imp. & Mach. Rev. 1 Dec. 6726/2 A jud of this strong coal, weighing about seven tons was brought down..in good condition.
1914 R. A. S. Redmayne Mod. Pract. Mining III. iii. 90 Each pillar was worked off in successive order by taking off slices (juds).
1935 A. J. Cronin Stars look Down i. xxii. 205 Reedy and Cha Leeming..left a fine jud of unworked coal on the face of their heading.
1987 R. Colls Pitmen Northern Coalfield ii. 23 This ‘drawing the jud’, or ‘judding’, where pillars were robbed and supplemented by wooden props..was devised by the inventive Buddle.
2. A space from which a large body of coal or stone has been or is to be removed; = jad n. Obsolete.
ΘΚΠ
society > occupation and work > workplace > places where raw materials are extracted > mine > [noun] > area ready for working
jud1845
buttock1883
1845 Jrnl. Franklin Inst. 9 367 These pillars are gradually cut away, and replaced for a while by systems of wooden props; and the place where these props replace a pillar is called a jud.
1883 W. S. Gresley Gloss. Terms Coal Mining 141 Jad (Som[erset].), a long and deep holing, cutting, or jud, made for the purpose of detaching large blocks of stone from their natural beds.

Derivatives

judding n. now historical a method of working in which some of the coal forming a pillar is taken away, the resulting space being supported by props until all the coal has been removed.
ΚΠ
1829 Edinb. New Philos. Jrnl. 7 247 They began to distinguish the different operations of kerving, nicking, judding, boring, and blasting.
1853 W. Barkus Ventilation & Gases Coal Mines 12 The method of removing the pillars by judding or taking away the coal, the entire breadth of the face, protected by props.
1987 R. Colls Pitmen Northern Coalfield ii. 23 Judding brought board and pillar close to the greater extractive yield of ‘longwall’ techniques.
This entry has been updated (OED Third Edition, December 2013; most recently modified version published online March 2022).
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n.1828
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