distant earthquake

基本解释

All was cleared up sometime later when news came from a distant place that an earthquake was felt the very day the little copper ball fell.
过了些时候，远方传来了消息：在小铜球坠落的当天，确实发生了地震。这一切终于得到了澄清。
All was cleared up some time later when news came from a distant place that an earthquake was felt the very day the little copper ball fell.
过了一些时候，从远方传来了消息：在小球坠落的当天，确实发生了地震。这一切终于得到了澄清。
jgxy.heuet.edu.cn
Three methods for scale calibration of horizontal pendulum tiltmeter, "microairflow", "strong distant earthquake" and "moving case", are briefly introduced.
本文简述了“微气流法”（含简易装置介绍）、“强远震法”、“动壳体法”三种标定水平摆倾斜仪格值的具体方法。