“sand clock”的概念、定义、习题解题方法及翻译-物理辞典

物理辞典收录了43806条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。

单词	sand clock
释义	sand clock 沙漏
随便看	second order day number second order spectrum second order term second pendulum second quantization second summation second transit second type surface sector sector boundary sectorial harmonics sector shutter sector structure secular aberration secular acceleration secular equation secular evolution secular inequality secular instability secular motion secular parallax secular perturbation secular polar motion secular precession secular resonance