三个优化 meaning in English

optimize industrial structure ecological environment and the

In the third optimization model , the stress and the first mode frequency are selected to form the performance constraints . the third optimization model is presented by the stress , the stiffness and the mass
在第三个优化模型中，以强度和一阶频率作为性能约束，对泵车有限元优化模型进行强度、刚度和质量多方面综合优化。
Chapter four proposes three suggests on policy . one is the optimizing of equity structure , the other is standardizing and developing bond ' s market , the last one is ruling some actions in the china ' s security ' s market
第四章则提出了优化股权结构、规范和发展债券市场、规范股市行为三个优化我国上市公司资本结构的政策建议。