“天车”的概念、定义、翻译、参考文献-科学参考

单词	天车
释义	天车 Encyclopedia 工学钻井装备释 crown block天车安装在石油钻机井架顶部，用于钻井钢丝绳的悬挂和导向、钻井工具的起吊等作业过程的定滑轮组。
随便看	vector cross product vector current vector d vector data vector data model vector data structure vector decomposition vector density vector derivative vector diagram vector difference vector differential equation vector differentiation vector diffraction theory vector direct product vector display vector distribution vector division vector dominance model vectored quantity vector equation vector field vector field along a curve vector field on a manifold vector field visualization

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。