单词：concrete arch
concrete arch的用法和样例：
例句
- Nonlinear analysis concrete filled steel tubular arches' mechanical property was researched.The appropriate constitutive equation was selected.摘要对一个模型拱进行了非线性分析，研究了钢管混凝土拱的力学性能。
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DEVELOPMENT REPORT - Long-Life Concrete Bridges By Jill Moss Broadcast: Monday, June 07, 2004 This is Robert Cohen with the VOA Special English Development Report. Each year, road accidents kill a mil
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讲解文本： concrete 具体的，混凝土的 We still don't have a concrete timeline for the plan. 关于这个计划，我们还没有具体的时间表。 I can't tell you anything concrete. 我也不能跟你说得太具体。 疯狂练习吧！
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