The strength of the real-estate market directly affects the construction, steel, concrete, power and appliance industries.
房地产市场景气与否直接影响到建筑、钢铁、水泥、电力和家电行业。
It is very important for concrete designer and for concrete construction to know the time of the concrete grows this critical strength.
找到达到这个强度所需的时间，对于指导混凝土配合比设计和混凝土施工有着重要的意义。
The technology of repairing the concrete structure with carbon fibre has the advantages of high strength, light weight and simple construction etc.
碳纤维加固修复混凝土结构技术具有强度高、重量轻、施工简便等优点。
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