“筒形拱”的概念、定义、翻译、参考文献-科学参考

单词	筒形拱
释义	筒形拱 Encyclopedia 理学拱券结构（三版人居：拱券）释 barrel vault筒形拱单一的、拱起的曲面，从一侧墙延伸至另一侧墙，直到覆盖整个建筑空间。
随便看	Second Republic of Spain Second Revolution second ring isomorphism theorem Second Saudi State second separation axiom second separation principle second shut in second sound second space Second Spring of Mr.Muo second-stage propulsion system for ejection seat second stage unit second Steiner circle second style mural second subordinate series second summation Second Temple Period second term second theorem of Pappus second trace second-trace echo second transit second-type outer boundary condition second type surface Second United Nations Conference on Human Settlements (HABITAT II)

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。