The secondary hazards of an earthquake generally mean a series of other hazards due, directly or indirectly, to the consequences of a strong shock, being very common and serious of earthquake hazards.
地震次生灾害一般指地震强烈震动后，以震动的直接或间接破坏后果为导因而引起的一系列其他灾害。
The internal flow fields in scramjet are very complex, due to the interaction of shock waves, expansion waves, boundary layer and strong reactions.
超燃冲压发动机的内部流场很复杂，存在激波、膨胀波、附面层和剧烈的化学反应等相互作用，给数值模拟带来很大的困难。
This paper shows that the interplanetary shock wave which resulting from solar events is very strong and that resulting from other disturbances is weak in general.
由太阳事件导致的行星际激波，不仅时空尺度很大、而且强度也很高； 但是由别的原因导致的行星际骚扰，一般产生的，则是时空尺度较小的弱激波。
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