Through computer simulation, samples, BP algorithms and the influence of network structure neurula on model performance have been discussed as well as the improving measures.
通过计算机实验，讨论样本、学习算法和网络结构等对神经网络预测模型性能的影响及其改进措施。
It was found that differentiation of muscle cells from these stages showed evident differences, only till mid-neurula stage all of the explants developed into well differentiated muscle cells.
结果表明，这段期间预定肌节在离体培养条件下分化程度有明显差异，直到神经胚中期几乎所有组织块都分化为肌细胞。
It was found that differentiation of muscle cells from these stages showed evident differences, only till mid-neurula stage all of the explants developed into well differentiated muscle cells.
结果表明，这段期间预定肌节在离体培养条件下分化程度有明显差异，直到神经胚中期几乎所有组织块都分化为肌细胞。
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