Through discussions of the utilizing situation and inspecting circumstances of a spherical container in the paper, its crack producing reason, defect safety and residual life have been analyzed.
通过对文中所及球罐使用状况及检验情况的讨论，对该球罐裂纹的产生原因、安全性和剩余寿命进行了分析。
The top wall crack phenomenon in brick and concrete structure is analyzed in brief, especially about the stress when the crack is split, and the reason of crack producing is put forward.
对砖混结构顶层墙体裂缝现象作了简要分析，特别分析了裂缝开裂时的受力状况，提出了裂缝产生的原因。
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