The practice proves that both models can play very important role in the optimization of the production plan and enhance the yield of steel products and slab quality.

实践证明，两种控制模型对保证铸坯产品的计划优化、提高钢材收得率及提高铸坯产品质量等均起到很大的作用。

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Silicon can obviously improve the elastic limit, yield point and tensile strength of steel.

硅能显著进步钢的弹性极限，屈从点和抗拉强度，故普遍用于作弹簧钢。

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The yield procedure and mechanics of steel 35 under torsional load were studied by standard cylinder specimen in this paper.

本文采用标准光滑圆柱试样，研究了35钢在扭转载荷下的屈服过程以及屈服机理。

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It might yield big benefits for commercial airlines and retail chains, which typically lease a large fraction of their assets, and for steel- and automakers that have large unionized workforces, which will give them greater leverage to renegotiate collective bargaining agreements.

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