?震源震时
...震央震时 time of earthquake at epicenter; time of occurrence at the epicenter 震源震时 time of occurrence at focus 过近点期 time of perihelion passage ..
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。