“正反循环回转钻孔机”的概念、定义、翻译、参考文献-科学参考

单词	正反循环回转钻孔机
释义	正反循环回转钻孔机 Encyclopedia 工学桩工机械释 direct or reversecirculation rotary drill正反循环回转钻孔机依靠钻具回转运动切削地层成孔，以正循环和反循环方式排渣的潜水式钻孔机。
随便看	uniform norm uniform operator topology uniform parabolicity uniform particle cluster suspension flow uniform point source uniform polychoron uniform polyhedron uniform polymer uniform pricing uniform primitive recursiveness uniform product uniform-product distribution uniform property uniform pseudo-jump operator problem uniform quantizing uniform random graph uniform random noise uniform random numbers uniform-ratio distribution Uniform Regulations on Chinese Writing and Typography uniform resonance uniform resource identifier Uniform Resource Locator uniform resource locator uniform resource locator, URL

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。