Bracket moulding method is adopted popularly while rigidity over line arch bridge main circle construction is proceeding.
高速公路跨线刚拱桥的主拱圈施工中，一般采用支架现浇施工。
Therefore, it is necessary to analyze the variation of the dry or thaw circle around the pipeline for pipeline design, construction and management.
因此分析管道周围土壤干燥圈或融化圈变化对管道系统的设计、施工和管理是十分必要的。
The archaeologists said in the statement that radio-carbon dating put the construction of the circle of bluestones at between 2,400 B.C. and 2,200 B.C., a few centuries later than originally thought.
考古学家在一份声明中说，经放射性碳测年法鉴定，环形巨石阵应该建造于公元前2400年至公元前2200年之间，比之前的推测晚了几百年。
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