“rock drill”的概念、定义、翻译、参考文献-科学参考

单词	rock drill
释义	rock drill Encyclopedia 工学机械式打桩机释 rock drill凿岩钻机安装有回转钻进机构或凿岩机，在岩石或混凝土等脆性材质上凿孔的机械。工学凿岩机械释 rock drill凿岩机以冲击作用为主，回转作用为辅，凿碎岩石，进行钻孔的机械设备。
随便看	ordinal scale ordinal scaling ordinal series ordinal sum ordinal sum; ordinal addition ordinal type ordinal variable ordinary ordinary aggregate ordinary algebraic branch-point ordinary arithmetic ordinary binding ordinary character ordinary chondrite ordinary concrete ordinary concrete structure ordinary congruence ordinary continued fraction ordinary convergence ordinary cosmetic ordinary curve ordinary cusp ordinary derivative ordinary dichotomy ordinary difference equation

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。