aqueduct body的用法和樣例：
例句
- The practical space analysis method is brought forward according to characters of acting forces and the large rectangular aqueduct bridge with multi-longitudinal beams.
摘要本文根據大型多縱梁矩形渡槽槽身結構及其受力特點(diǎn)，提出實(shí)用空間分析法，使復雜的空間結構計算分離成相互聯(lián)系的兩個(gè)平面問(wèn)題。
