Aim To study the critical crack and initial permissible crack size of gun tube.
目的研究火炮身管的临界裂纹和初始允许裂纹尺寸。
The single lap joint fails when the crack length reaches to the critical size.
当裂纹扩展到临界尺寸时，接头会迅速破坏。
It is critical to control deformation during large size steel structure platform assembling.
对于大型钢结构平台的施工，防变形控制是施工的关键。
The results show that there is critical particle size in the test range.
结果表明，在所研究的粒级范围内，存在一个沉降。
The results show that there is critical particle size in the test range.
结果表明，在所研究的粒级范围内，存在一个沉降。
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