surface acceleration meaning in English

表面加速度

A new method based on the frequency decrease rate for fast identification of site liquefaction from surface acceleration records was presented
摘要提出了一个以频率下降率为基本指标的依据强震记录快速识别场地液化的新方法。
And then the lower limit of the frequency decrease rate was derived , and the last identification method of site liquefaction from surface acceleration records was proposed
基于强震记录快速识别场地液化的方法，并用实际地震记录对其可靠性进行了分析。
3 . for three kinds of different soil layer construction , the characters of the platform values and the characteristic periods of ground surface acceleration response spectra were studied
3系统地研究了软夹层在底部、中部和顶部的三种土层结构的反应谱平台值和特征周期的主要特征。
With the use of one - dimension equivalent - linear wave motion method which is wildly used at present in the analysis of earthquake site response , the platform values and the characteristic periods of ground surface acceleration response spectra of different profiles were calculated and analyzed under different ground motion inputs
利用目前工程上常用的一维等效线性化波动方法计算分析在不同地震动输入下，不同场地类别、三种土层结构的地表加速度反应谱的特征周期和平台值。