In order to calculate the crack depth efficiently, author introduces the muti - layer model into crack problem.
为了更好地计算混凝土结构裂缝的开展深度, 文中引入了分层模型.
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It is a significant task to develop special instrument for concrete crack depth test after fire.
检测或诊断裂纹深度是火灾后混凝土结构受损综合评判的重要依据.
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