“free tree”的概念、定义、翻译、参考文献-科学参考

单词	free tree
释义	free tree [`frē ´trē] ^MATHEMATICS A tree graph in which there is no node which is distinguished as the root.
随便看	rare gas rare metal RAREP Rarita-Schwinger equation raschel knitting Raschig process Raschig ring rash Ra-Shalom rashing RA size rasorial rasorite sextant altitude corrections sextant error sextic sextile aspect sextillion sexual cycle sexual dimorphism sexuality sexually transmitted disease sexual reproduction sexual selection sexual spore

科学参考收录了103327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。