The problem is, he says, many phenomena other than large earthquakes also result in radon release, including rainfall and atmospheric pressure changes.
但问题是，他说，除了大地震，许多现象也会导致氡气的释放，包括降雨和大气压力变化。
The problem is, he says, many phenomena other than large earthquakes also result in radon release, including rainfall and atmospheric pressure changes.
但问题是，他说，除了大地震，许多现象也会导致氡气的释放，包括降雨和大气压力变化。
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