“tree”的概念、定义、翻译、参考文献-科学参考

单词	tree
释义	tree Encyclopedia 理学基础数据结构释 tree树一类特殊的无向图，其中的任二顶点间恰有一条路径。树作为一种图论术语最早被A.凯莱在其1857年发表的文章中使用，这类图结构类似于树木枝杈，因而得名。 Physics tree树[形]｛数｝ tree [diagram]树[图]^† Mathematics ＞数理逻辑与数学基础＞集合论＞释义 tree树 tree树^†
随便看	sign of addition sign of aggregation sign of definition sign of division sign of equality sign of falsity sign of implication sign of inequality sign of integration sign of intersection sign of multiplication sign of ratio sign of sexual communication sign of subtraction sign of the Devil sign of the membership relation sign of union signomial programming Signoria Plaza, Florence, Italy sign rank sum test statistic sign representation signs of zodiac sign system of museum digital guide Signs：Journal of Women in Culture and Society sign test

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。