arch camber短语¹⁴⁴⁹⁷²⁺² 基本例句 起拱,拱矢,拱翘起 In order to construct conveniently, some problems of the steel truss assemble on the ground, for example, subsection and arch camber of steel truss, have been discussed. 对钢桁架地面拼装的一些问题，如钢桁架的分段、起拱等问题进行了讨论，以期达到方便施工的目的； cnki