吉林台一级水电站地处祖国西北边陲，大坝工程是按抗9度地震和满足严寒气候条件设计的。

The dam of Jilintai Hydropower Station I is designed with the specifications for the earthquake intensity of 9 and the severe cold climate.

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我们所观测到的世界上地震发生后强度最大的余震通常要比主震小一级，一般是在几个月内发生，但也可能是在几年后。

The largest aftershocks of an earthquake over the years around the world we've observed tend to be about one magnitude unit less than the main shock, more likely within months, but it could be years.

youdao

我们所观测到的世界上地震发生后强度最大的余震通常要比主震小一级，一般是在几个月内发生，但也可能是在几年后。

The largest aftershocks of an earthquake over the years around the world we've observed tend to be about one magnitude unit less than the main shock, more likely within months, but it could be years.

youdao