These patterns include events of envelope type, micro structural cracks, gas eruption, shock with high frequency and small swarms.

主要有包络型事件、微构造破裂事件、汽爆事件、高频地震和小震群。

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In mass concrete construction, the structural cracks by cement hydration heat will influence the durability and mechanical properties of concrete.

在大体积混凝土施工中，由于水泥水化热等多种因素产生的混凝土结构裂缝将影响混凝土的耐久性能和力学性能。

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After the quake, some home owners in the county seat reported structural cracks and broken window panes, but power, water and telecommunications were all unaffected.

地震过后，县城一些居民报道出现了房屋结构破裂和窗玻璃破碎，但是供电、供水和电信均未受影响。

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Cracks and structural faults appeared and cantilevers began to deflect almost immediately.

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"Most of the ones I looked at had just cracks in the wall--of no structural significance, " he says.

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Worse still is the structural component's shape: notches and sharp corners create concentrations of stress that can initiate cracks.

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