恁

• From the velocity - type records and the acceleration - type records in one station the same ground motions can be recovered , and the calculated response spectra are the same in a specific period range . this indirectly proves the reliability of the two types of records
  速度型和加速度型数字宽频带记录可以恢复出相同的地震动，在一定的川朋范田内得到相同的反应谱，间接证明了这两种地恁记录的可靠性。