“hard-rock mine”的概念、定义、翻译、参考文献-科学参考

单词	hard-rock mine
释义	hard-rock mine [`härd ¦räk `mīn] ^{MINING ENGINEERING} A mine located in hard rock, especially a mine difficult to drill, blast, and square up.
随便看	production packer production program production reactor production requirements production standard production tank production test production time production track production tubing productive cough productive time productivity productivity index productivity ratio phonograph pickup phonograph record phono jack phonolite phonon phonon-drag effect phonon-electron interaction phonon emission phonon wind phonophobia

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。