Interfaces are the weakest parts in a concrete structure. 摘要界面是混凝土結構中最為薄弱的環節。
Bid documents indicated two alternative designs, one in steel and one in concrete. 投標文件中提出了兩種設計方案，一種是鋼結構，另一種是混凝土結構。
The experiments were conducted in a two-story reinforced concrete building. 本次實驗在一棟二層樓鋼筋混凝土建筑物中進行。
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，甚至在試驗力比較小的情況下，鋼筋混凝土建筑物也呈現出明顯的非線性性質。
The reasonable choice of the structure form must be decided by the idiographic condition of the project. 具體結構形式的選擇需要根據工程情況確定。
