图为汶川地震灾区小学生聚集在联合国儿童基金会援助的帐篷前。
The picture shows children of a primary school in Wenchuan earthquake-stricken area gathered in front of a tent donated by the United Nations Children's Fund.
震前对现有建筑的抗震加固，是减轻地震灾害行之有效的方法之一。
Seismic strengthening existing buildings before earthquake is one of effective ways to mitigate earthquake disaster.
最后，笔者还讨论了震前预测地震灾害的必要性。
The author also indicated that the damage prediction before earthquake is necessary and possible.
应用推荐