Drill and rebound are two common concrete strength testing methods.
钻芯和回弹是两种常用的混凝土测强方法.
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Common concrete mixture ratio design involves broad theory and rich practice knowledge.
普通混凝土配合比设计,其涉及的理论和实践知识甚广.
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Lightweight aggregate concrete used in large - span concrete arch shell structure lower cost than common concrete sometimes.
本文就所研究的大 跨 径混凝土拱壳结构,采用轻骨料混凝土材料从造价上来说有时比普通的混凝土材料更经济.
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The selection of mix proportion design parameter different from common concrete was probing into, too.
并探讨其不同于普通混凝土的配合比设计参数的选定.
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Today, the more common concrete cracks, the cracks in the bridge project is almost ubiquitous.
而在今天, 混凝土的裂缝较为普遍, 在桥梁工程中裂缝几乎无所不在.
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