2) low frequency earth sound
低频地声
1.
As indicated by observed results,prior to the occurrence of near field earthquake,low frequency earth sound becomes exceptional intensive in information.
阐述大地震前低频地声的波形和频谱的特征。
4) low-noise earth
低噪声接地
5) in a pig's whisper
低声地;瞬间
6) She said it in a whisper.
她低声地说。
补充资料：低声
1.轻声，小声。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条