| 单词 | blast hole |
| 释义 | > as lemmasblast hole blast hole n. the hole by which water enters a pump, the wind-bore. ΚΠ 1870 Eng. Mechanic & Mirror of Sci. & Art 8 July 380/3 Air-strung pump... He will find that the short pipe, which is called the blast hole piece, is what is called blast hole tight. blast hole blast hole n. Mining a hole into which a charge of explosive is inserted. ΚΠ 1747 W. Hooson Miners Dict. sig. N4 Their bigness is about an Inch at least, for either Blast-holes, or Clift-holes. 1944 Mining Congress Jrnl. June 77/3 The diamond drill is particularly adapted for blast holes. 1944 Mining Congress Jrnl. June 71/1 Blast hole drilling with diamond bits has been introduced recently..in the United States and Canada. < 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。