煤柱稳定既取决于外加载荷，又取决于其内在性态的变化。
The stability of coal pillars depends upon additional load as well as change of its internal characteristics.
当外加载荷超过材料强度极限而造成零件断裂称为过载断裂。
When the applied load exceeds the limit strength of the material as a result of parts breaking overload fracture.
实质断裂强度性能受到了外加载荷与磨削残余应力的组合应力的制约。
The real fracture strength is restrained by both stresses caused by outside load and residual stresses after grinding.
在玻璃加工质量允许的条件下，玻璃制品孔加工宜选择高的切削速度、适当的外加载荷。
Under the conditions of permission of glass processing quality, the high cutting speed and suitable external load should be selected.
当外加载荷大小、加载宽度及结构体长度相同时，柱壳结构中截面上拉应力最大值大于平板。
When their loading sizes, widths and lengths are the same, the maximum value of stress at the center of cross-section will be greater than that of the plane structure.
当外加载荷大小、加载宽度及结构体长度相同时，柱壳结构中截面上拉应力最大值大于平板。
When their loading sizes, widths and lengths are the same, the maximum value of stress at the center of cross-section will be greater than that of the plane structure.
应用推荐