time of impact meaning in English

撞击时间

We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna . then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys . through the analysis we got the system ' s connatural characteristic , the amplitude - frequency characteristic of harmonic response , the power spectrum density of random vibration response , the maximal amplitude and resuming time of impact response
其次借助ansys有限元分析软件，对系统进行了模态分析和动力学响应分析，获得了不同天线结构参数下的卫星?天线系统的固有特性，简谐响应的幅频特性，随机振动响应的功率谱密度，以及冲击响应的最大幅值和恢复时间等。
While the small telescopes set up at planetary society headquarters in pasadena , as well as telescopes at griffith observatory in los angeles , reported seeing nothing unusual at the time of impact , a brief explosion was captured by infrared cameras attached to the french canadian hawaiian telescope high atop mauna kea in hawaii
在行星协会的总部帕萨迪纳架设的小望远镜，以及洛杉矶格里菲斯天文台的望远镜都报告在撞击时刻未发现不寻常的事情，夏威夷毛纳基山顶的法国-加拿大望远镜上的红外照相机捕捉到了短暂的爆炸。