A study on the parameter matching for the powertrain of a four-wheel-drive fuel cell electric vehicle with dual energy sources and multiple motors is conducted.
针对某多电机双能源四轮驱动燃料电池汽车动力参数匹配进行了研究。
The conclusion of this text is: through the study on soil nature and BP neural network , a holing parameter predicts models after setting up.
其结论为：通过对岩土性质及BP神经网络的研究，建立了一种新的钻孔间参数预测模型。
Experimental study on parameter optimization of the maximal influencing factor layer of alternately laminated anisotropic damped structures was carried out with dynamic mechanical analyzer (DMA Q800).
借助动态热机械分析仪(DMA Q 800)对交替层合各向异性阻尼结构阻尼性能的影响权重最大层的各参数进行优化实验研究。
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