| 单词 | rock bind |
| 释义 | > as lemmasrock bind rock bind n. chiefly Mining and British regional (now rare) (frequently in plural) sandy shale; cf. bind n. 4. ΚΠ 1798 S. Shaw Hist. & Antiqs. Staffs. I. 118/1 (table) Rock-binds. 1862 A. C. Ramsay et al. Descr. Catal. Rock Specim. 71 Argillaceous sandstones..which pass under the name of ‘rock’ or ‘rock binds’. 1920 Proc. Amer. Philos. Soc. 59 497 The upper portion of the Thick Coal, 9 feet thick, rests on 42 feet of sandy shale, below which are 44 feet of ‘rock binds’ to the Heathen Coal. < as lemmas |
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