“U型管真空计”的概念、定义、翻译、参考文献-科学参考

单词	U型管真空计
释义	U型管真空计 Encyclopedia 工学真空计释 U-type tube manometerU型管真空计根据U型管中的液位差测量粗真空和低真空的绝对真空计。
随便看	concave downward concave function concave functional concave grating concave kite concave lens concave metric concave minimization problem concave mirror concave operator concave polygon concave polyhedral angle concave polyhedron concave probability measure concave programming concaver concave sequence concave space concave surface concave-up concave-up curve concave upward concavity concavity coefficient concavity cut

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。