“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	positivity axiom positivity domain positivity property positizable operator positroid boundaries positroid stratification positron positron-annihilation apparatus positron annihilation spectroscopy positron annihilation spectroscopy (PAS) positron annihilation technique positron-annihilation technique positron-electron annihilation positron emission positron emission mammography positron emission tomography positron-emission tomography positron emission tomography-computed tomography positron emission tomography/computed tomography positron emission tomography-computed tomography (PET/CT) positron emission tomography-computed tomography，PET/CT positron emission tomography/magnetic resonance imaging positron emission tomography-magnetic resonance imaging，PET/MRI positron emission tomography (PET) positron emission tomography, PET

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。