您要查找的是不是：
- Scientists measure seismic ground movements in three directions: up-down,north-south,and east-west. 科学家在三个方向主测定地震的运动：上下、南北和东西。
- Scientists measure seismic ground movements in three directions: up-down, north-south, and east-west. 科学家在三个方向主测定地震的运动：上下、南北和东西。
- Nonuniform seismic ground motion has a great effect on the responses of long-span structure. 非一致激励输入对大跨结构响应有着较大影响。
- The seismic influence field reflects the space distribution of seismic intensity or space-related seismic ground motion field. 摘要地震影响场反映了地震动强度的空间分布或与空间相关的地震动场。
- And then taking Nanmen arch bridge as an example f the importance of the spatial variation of seismic ground motion to long-span arch is investigated. 然后以四川宜宾金沙江南门大桥为例，研究了地震动空间变化对大跨度拱桥抗震安全的重要意义。
- The spatial variation of seismic ground motions is produced primaryly by the three factors of geometric incoherency effect,wave-passage effect, and local site effect. 导致地震动空间变异性的原因主要在于:几何不相关性效应、行波效应、局部场地条件效应。
- Based on a multi-story shear-type sliding-isolated structure, the law of FFT spectrum of the acceleration response to seismic ground motions is computationally analyzed. 摘要以一个多层滑移隔震剪切型结构为例，计算分析了结构地震加速度响应频谱规律。
- Abstract: A probability model was developed to analyze seismic ground surface ruptures （SGSRs） to assess the faultage ground area for urban land use planning in China. 文章摘要: 为评价中国城镇土地利用中的断层场地，建立了强震地面断裂危险性评价概率模型。
- The horizontal and vertical earthquake response of an isolated bridge structure under multiple seismic ground motion excitations is analyzed in this paper. 摘要分析了多维地震动作用下隔震桥梁结构的水平向和竖向振动反应。
- The elephant foot bulging deformation of rigid walls of liquid-storage tanks under horizontal and vertical seismic ground motions is analyzed by using the finite element model involving fluid sloshing and tank bottom uplift with ANSYS. 摘要基于ANSYS软件建立了考虑液体晃动和罐底提离立式储液罐有限元模型，分别进行了水平地震和竖向地震作用下罐壁“象足”变形分析。
- If r.m.s. (root-mean-square) of random seismic ground motions are equal,seismic responses are considerably greater for the case of soft soil than for the cases of firm soil or medium soil. 在加速度均方根相同的随机地震作用下;斜拉桥在软场地条件下的地震响应明显大于在硬场地条件下的响应;中等场地条件下的地震响应介于两者之间.
- If r.m.s. (root-mean-square) of random seismic ground motions are equal, seismic responses are considerably greater for the case of soft soil than for the cases of firm soil or medium soil. 在加速度均方根相同的随机地震作用下，斜拉桥在软场地条件下的地震响应明显大于在硬场地条件下的响应，中等场地条件下的地震响应介于两者之间。
- The motionequation of the system under horizontal seismic ground motion can be obtained by means ofvirtual displacement principle.Finally,the seismic response of the structure is computed. 引入容器的变形假设和确定的液动压力假设，应用虚位移原理可获得体系在水平地震作用下的运动方程，而后考察其地震动响应。
- Impact of Coal Mine Goaf on Seismic Ground Motion 煤田采空区对地面地震动的影响
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- asynchronous seismic ground motion 非一致地震地面运动
- three-dimensional seismic ground motion 三维地震
- The ground was covered with ferns. 地面上长满了羊齿植物。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
