区域地壳稳定性是指工程建设区域内现今地壳在内动力作用下的相对稳定程度。地壳自形成以来，总是处于运动发展之中，稳定则是处于某一相对短暂的地质历史时期，或是处于某些局部地区。
区域地壳稳定性是进行重大工程建设时必须研究的课题。
It is essential to study the subject for evaluating the regional crust stability before a large and important project is established.
重大工程选址区域地壳稳定性评价专家系统的开发涉及到众多学科。
An expert system of regional crustal stability evaluation of the siting of key engineering works has been developed.
唐山地区区域构造复杂，工程地质问题众多，地震频繁，总体看来唐山地区区域地壳稳定性相对较差。
Tangshan area, complicated in regional structures which result in frequent engineering problems and earthquakes, is relatively unstable in its regional crust.
应用推荐