Interfaces are the weakest parts in a concrete structure. 摘要界面是混凝土结构中最为薄弱的环节。
Bid documents indicated two alternative designs, one in steel and one in concrete. 投标文件中提出了两种设计方案，一种是钢结构，另一种是混凝土结构。
The experiments were conducted in a two-story reinforced concrete building. 本次实验在一栋二层楼钢筋混凝土建筑物中进行。
It is interesting to note that the concrete building exhibits distinctly nonlinear behavior even at the relatively low force levels of the test. 值得注意的是，甚至在试验力比较小的情况下，钢筋混凝土建筑物也呈现出明显的非线性性质。
The reasonable choice of the structure form must be decided by the idiographic condition of the project. 具体结构形式的选择需要根据工程情况确定。
