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RT @FrontEarthSci: New Research: The apparent focal depth, emergence angle, and take-off angle of seismic wave measured by YRY-4-type boreh…
RT @FrontEarthSci: New Research: The apparent focal depth, emergence angle, and take-off angle of seismic wave measured by YRY-4-type boreh…
New Research: The apparent focal depth, emergence angle, and take-off angle of seismic wave measured by YRY-4-type borehole strainmeter as one kind of strain seismograph: Introduction: In theory, the observation objects and principles of… https://t.co/MCfO