But for previous major tsunamis, scientists just had measurements that tide gauges recorded near the coast or that surveyors later estimated from water damage on land.
英
美
- 但相对于过去的大海啸,科学家只能得到验潮仪在岸边记录到的测量值,或是勘测员事后依陆地毁坏程度所做的估测值。