The third one belonged to stability criterion optimization that determined the optimal number and position of wing ribs.
第三个层次为稳定性准则优化，它确定横向骨架的个数与位置的最优布局。
The most critical problem which lies in the optimal reinsurance study is that, under a certain optimization criterion, how the insurer determines the retention of the size and form of reinsurance.
最优再保险研究中最关键的不足在于，在某种优化准则下，保险人如何确定自留额的大小以及再保险的形式。
It is emphasized that the main content of ecological optimization criterion of a refrigerator is to make the best compromise between the refrigeration rate and its dissipation.
强调了制冷机生态学准则的主要内容是要使制冷率与制冷率耗散达到最佳的折衷。
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