“露天潜孔钻机”的概念、定义、翻译、参考文献-科学参考

单词	露天潜孔钻机
释义	露天潜孔钻机 Encyclopedia 工学〔露天钻孔设备〕释 surface down-the-hole drill rig露天潜孔钻机以冲击器潜入孔内直接冲击钻头破岩，而回转机构在孔外带动钻杆旋转，向矿岩进行钻进的钻孔机械。
随便看	ordered class of subobjects ordered collection ordered complex ordered couple ordered cycle ordered direct product ordered direct sum ordered estimate ordered extension ordered factor group ordered factorization ordered field ordered field extension ordered geometry ordered grammar ordered group ordered groupoid ordered incidence structure ordered integral domain ordered linear space ordered list ordered module ordered monoid orderedness ordered normed space

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。