“annular bit”概念、定义、翻译-科学时代

单词	annular bit
释义	水利水电词汇手册 annular bit 环形钻头
随便看	formalin formalin formalin formalin formalin-alum tanning formal indexation formal instrument formal interview formalism formalism formalism formalism formalism formalism formalist formalist formalist aesthetics formalist criticism formalistic formal item formality formality formality formality formalization

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

annular bit