The Chilean quake of 1960 shook the entire Earth for many days, a phenomenon called oscillation that was measured by seismic stations around the planet.
1960年的智力地震让地球持续震动了若干天。持续的震动被各地的地震观测站测量到。
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The study of long-period seismic wave is significant to the seismic design of the large-span engineering structures with long auto-oscillation period.