求翻译：下承式系杆拱桥是跨越航道、跨越铁路或公路的常用桥型，造型比较美观，施工技术含量较高。德清临杭工业区启航大桥主桥上部结构施工技术方案设计主要进行非通航孔上部结构系梁、横梁的现浇支架和钢管拱架设以及顶升混凝土等的施工技术方案编制，并进行模板设计应用、支架设计计算、预应力张拉计算等多方面计算。是什么意思？

Deck tied arch bridge across the waterway, across the common rail or road bridge type, and more beautiful shape, and construction of high technology content. Deqing Pro Hang industrial area sail Bridge Main Bridge construction technology program designed primarily to non-navigable Kong Department of

The next-style tie rod arched spans across channels, commonly used by rail or road bridges, look more beautiful and works with high technology content. Alejandro Toledo Manrique de-industrial area a sail the bridge superstructure construction technology program designed primarily for non-navigation

The bottom-road bridge tie bar arched bri

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