英语词汇“judding”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

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judding

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.

extracted from judn.

as lemmas

单词	judding
释义	> as lemmas judding 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. extracted from judn. < as lemmas
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