Practical calculating instances have disclosed the fact that better social and economical advantages can be achieved by overall optimum design than by the lightest weight design.
实际算例表明：综合优化设计可以取得比最轻重量设计更为明显的社会经济效益。
Practical calculating instances have disclosed the fact that better social and economical advantages can be achieved by overall optimum design than by the lightest weight design.
实际算例表明：综合优化设计可以取得比最轻重量设计更为明显的社会经济效益。
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