This article adopted Ritz method and divide-fit mathematical method, solved the problem of elastic buckling of thin plate under compression and bend multiplicity action.
采用里兹法和切分拟合的数学方法，讨论了单向压缩和弯曲共同作用的薄板弹性屈曲问题。
The system of index, multiplicity of weight and method of assessment for the practice achievement.
实习成绩评定的指标体系、权重分配和方法。
Because the multiplicity on Magnetic method Inversion, this method apply to resource's estimation before validation of borehole.
因磁法反演的多解性，此类方法适用于钻孔验证前的资源量估计。
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