澳大利亚北部地方过去的无震区接连发生三次6级以上地震。
Three earthquakes of magnitude 6 or over successively occur - red in the previous aseismic regions of Northern Territory, Australia.
无柱帽板柱结构作为一种新型的房屋结构形式，在工程实践中应用不多，尤其是在地震区的使用就更少。
The slab column structure without column cap which is a new type of building structure has not been used usually in engineering practice, especially rarely applied in earthquake regions.
无柱帽板柱结构作为一种新型的房屋结构形式，在工程实践中应用不多，尤其是在地震区的使用就更少。
The slab column structure without column cap which is a new type of building structure has not been used usually in engineering practice, especially rarely applied in earthquake regions.
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