根据对桥梁段倒虹吸钢管及其镇墩基础的抗震分析可知，一般地震下，不必对桥梁倒虹吸钢管进行特殊处理；
According to the antidetonation analysis on the Pour siphon in bridge and associated ease base, the special treatment is generally not required.
城市总体规划、镇总体规划的规划期限一般为二十年。
The period covered by the overall plan of a city or town is 20 years in general.
青白瓷是五代时期出现的一个新瓷种，传统认识一般以宋代景德镇窑产品为代表，但关于其早期的生产情况并不清楚。
Bluish white porcelain was a new kind of porcelain made during the Five Dynasties, which was produced in Jingdezhen and considered as the most typical according to traditional view.
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