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根据Nb-Ti高强度低合金钢(0.08%~0.11%C,0.01%~0.04%Nb,0.01%~0.23%Ti)板材实际生产数据,采用多元逐步线性回归,得出钢板屈服强度σs(MPa)和抗拉强度σb(MPa)的数学模型:σs=294.01Wc+747.89WNb+1 021.09WTi-0.17Tc+595.99;σb=1 356.73WNb+1 361.39WTi-0.01b-1.69h+442.43(Wc,WNb,WTi为成分质量分数/%;Tc为卷取温度;b为成品板宽;h为成品板厚).同时建立了BP神经