Therefore, to investigate the minimal thicknessofcovering layer of underwater tunnel is greatly engineeringly significant.
因此，对水下隧道的最小覆盖层厚度进行研究具有较大的工程意义。
2
By the analysis of the deformation of metallic composite rolled products, a formula for calculating the thicknessofcovering slab for multilayer metallic composite rolling is derived.
通过对金属复合轧制的变形分析，导出了多层金属复合轧制的包覆板坯厚度计算公式。
3
If you have a normal thicknessof bone, which is about 0.6 or 0.7 millimeter covering the superior canal, that's very unlikely to ever erode.