“raise drill”的概念、定义、翻译、参考文献-科学参考

单词	raise drill
释义	raise drill [`rāz ´dril] ^{MINING ENGINEERING} A circular raise driving machine which bores a pilot hole and reams it to finished raise diameter.
随便看	control echo control electrode control element control feel control field control gene control grid control-grid bias control-grid plate transconductance control group control head gap control hierarchy control hole control inductor control instructions control joint control key controllability controllable-pitch propeller control lead controlled aerodrome controlled airspace controlled atmosphere controlled avalanche device controlled avalanche rectifier

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。