“近点周期”概念、定义、翻译-科学时代

单词	近点周期
释义	天文学词汇手册近点周期 anomalistic period
随便看	concave holographic grating concave lens concave lens concave milling cutter concave mirror concave mirror concave mirror concave mirror concave operator concave polygon concave polygon concave polyhedron concave programming concave relief concave scraper concave slope concave slope concave upward concave up（ward） concavity concavity concavity concavity concavity of entropy concavo-concave

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。