The earthquakes occurred during radoncontent dropping.
地震发生在氡值下降的过程中。
2
The emanation scintillation method to determine the radoncontent is the principal way.
射气闪烁法是测氧的主要方法。
3
Results of the experiment show that rock rupture may be considered as one of the causes of variation of Radoncontent before the occurrence of an earthquake.