“surface down-the-hole drill rig”的概念、定义、翻译、参考文献-科学参考

单词	surface down-the-hole drill rig
释义	surface down-the-hole drill rig 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	Almost Transparent Blue almost triangular matrix almost uniform convergence almost uniformly convergent almost unit almost zero Almqvistsällskapet almucantar almucantur al-Muqanna ‘Rebellion Al-Murabitūn Dynasty Almuredin Al-Muwahhidūn Dynasty al-Muwashshaḥ al-Muwatta Alnair Al Nasl Alnath alnico AlNiCo permanent magnetic material Alnilam Alnitak Al Niyat Alniyat aloe

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。