| 单词 | pump spear |
| 释义 | > as lemmaspump spear pump spear n. now historical = pump rod n. ΚΠ 1702 in Essex Inst. Hist. Coll. (1906) XLII. 161 Inventory of ship..Two pump Speares. 1769 W. Falconer Universal Dict. Marine at Brake The pump-spear..draws up the box or piston, charged with the water. 1883 W. S. Gresley Gloss. Terms Coal Mining 38 Bumpers,..projecting blocks of wood attached to pump spears for preventing damage in case of a break down. 1989 Technol. & Culture 30 588 On the Molasses Reef ship the pump ‘spear’—the staff or rod by which the pump worked—fitted into the central hole of the pump. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。