“pneumatic rock drill”的概念、定义、翻译、参考文献-科学参考

单词	pneumatic rock drill
释义	pneumatic rock drill Encyclopedia 工学凿岩机械释 pneumatic rock drill风动凿岩机以压缩空气驱使活塞在气缸中向前冲击，使钢钎凿击岩石的机械。是凿岩机的一种。
随便看	electronic reconnaissance electronic reconnaissance satellite electronic records Electronic Records and Electronic Archives Management electronic records/archives Electronic Records Archives Program of National Archives and Records Administration electronic records audit trail electronic records backup electronic records center electronic records classification electronic records destruction electronic records detection electronic records management electronic records management objectives electronic records management process Electronic Records Management Software Applications Design Criteria Standard electronic records management system electronic records medium management electronic records metadata electronic records metadata management electronic records retention period and disposition schedule electronic records retrieval electronic records security management electronic records storage format electronic records systematic management

科学参考收录了854744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。