We discuss first a wide variety of evidence bearing upon the thickness and constitutional variation of plates. 我们首先讨论与板块厚度和结构的变化有关的各种证据。
Given the fiber orientation and the lamina thickness as the design variables and the LPF load as the objective, a structural optimization problem is solved. 以纤维方向角和层合板厚度作为设计变量，以最终失效强度为目标，对结构进行优化分析。
