| 释义 |
次声波cìshēngbō低于人能听到的最低频(20赫兹)的声波。次声波在传播过程中衰减很小,可用来预测风暴、地震和探矿等。{infrasonic sound; infrasonic wave, sound waves with frequencies below the minimum (20Hz) that people can hear. Since it decreases very little in the course of transmission, it can be used to forecast storms and earthquakes, and locate mineral deposits.} |