If we were to try burying our detectors in order to attenuate the surface waves, we would soon grow discouraged . 如果企圖用埋置檢波器的方法來衰減面波,很快就會(huì)發(fā)現(xiàn)這種做法是徒勞的。
The erection technology of 30m t - beam of the ramp bridge on weak subgrade 橋梁淺基礎(chǔ)埋置深度的模糊確定