It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
研究结果表明：在简谐地面加速度作用下，高频地震动也可以引起长周期结构产生很大的位移反应，且最大位移反应出现在结构的瞬态自由振动阶段。
The displacement response of structure relative to the ground motion has a certain degree of lag, but the stress response is sensitive.
结构在地震作用下的位移反应相对于地面运动有一定的滞后，但应力对地震作用反应灵敏。
The image motion generated by the relative displacement between the ground scene and imaging system is the main cause of lower resolution in the imaging system of remote sensing satellite.
在遥感卫星成像系统中，地面景物与成像系统间的相对位移所产生的像移是造成分辨率下降的主要原因。
The image motion generated by the relative displacement between the ground scene and imaging system is the main cause of lower resolution in the imaging system of remote sensing satellite.
在遥感卫星成像系统中，地面景物与成像系统间的相对位移所产生的像移是造成分辨率下降的主要原因。
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