| 单词 | mineral pitch |
| 释义 | > as lemmasmineral pitch mineral pitch n. = asphalt n. 1. ΚΠ 1796 R. Kirwan Elements Mineral. (ed. 2) II. 45 Mineral Pitch, Asphaltum. Mineral Tar exposed to a moderate heat, and the action of the air, hardens into this substance. 1910 Encycl. Brit. I. 482/2 At Selinitza..there is a remarkable deposit of mineral pitch which was extensively worked in Roman times. 1991 Offshore Oct. 68/2 (table) Drilling fluids product directory... Loss circulation, sealing materials... Mineral pitch drilling sealant. < as lemmas |
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