The paper outlines the cause of anomalous local plumb-line variations before earthquakes; the establishment of monitoring networks; the progress and prospect of research.
本文概述了地方铅垂线变化震前异常的原因、监测网的建立、研究进展以及展望。
2
For me these meditations are like a plumbline dropped by a master builder - to see if the walls are straight or crooked.
对我来说这些冥想就像一条建筑工人吊的铅垂线—来检查墙壁是否垂直。
3
when a carpenter is satisfied that the walls are straight and aligned with the standard of the plumbline, he says that they are “true.”