“direct or reversecirculation rotary drill”的概念、定义、翻译、参考文献-科学参考

单词	direct or reversecirculation rotary drill
释义	direct or reversecirculation rotary drill 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	radiation hardening assurance integrated circuit radiation hardening method radiation hardening technique radiation hardening techniques radiation hazard radiation hazard effects radiation hazard; radiation risk radiation heat-equilibrium method radiation heat load of suspension firing boiler radiation hydrodynamics radiation hygiene radiation immobilization radiation immobilization of enzyme radiation impedance radiation indirect action radiation induced autoxidation radiation-induced autoxidation radiation induced carcinogenesis radiation-induced cataract radiation-induced chemical reactions radiation-induced copolymerization radiationinduced copolymerization radiation induced diseases radiation-induced diseases radiation induced genetic effect

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。