这些墙由混凝土或者砖建成，但是没有钢筋进行支撑。
These walls were made of concrete or brick, but not reinforced with steel.
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其理由是分析中没有考虑钢筋的纽结。
The reason for this is that the analysis takes no account of kinking of reinforcement.
当时还没有高达的钢筋混凝土建筑。
There were no huge tall buildings of steel and stone.
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