| 单词 | firedamp-drainage drill |
| 释义 | firedamp-drainage drill [`fīr´damp ´drān·ij ´dril] MINING ENGINEERING A heavy, compressed-air-operated, percussive, rotary or rotary-percussive drilling machine for putting up the boreholes in firedamp drainage. |
| 随便看 |
|
科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。