“上向孔凿岩”的概念、定义、翻译、参考文献-科学参考

单词	上向孔凿岩
释义	上向孔凿岩 up-hole drilling
随便看	key-driven calculator key drop keyed keyed amplifier keyed attribute keyed beam keyed brick keyed bush keyed clamp(ing) keyed construction joint keyed direct access keyed end keyed file keyed joint keyed jointing keyed original trace keyed pointing keyed rainbow signal keyed sequential access keyed sequential access method keyed sequential file key ended trunk line key entry device key enzyme keyer

科学参考收录了1248194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。