求翻译：BP神经网络模型是否能够准确和全面地反映竞技体育中存在的客观规律性，关键取决于各项评价指标的确定以及指标权重值选取的科学性、客观性和精确性。因此，BP神经网络在竞技体育应用中，一方面要注重评价指标的科学选取，另一方下面还要不断地改进BP神经网络算法，确保建立的BP神经网络模型具有较高的模拟精度和较好的可行性。是什么意思？

BP neural network model is able to accurately and comprehensively reflect the existence of competitive sports in the objective laws, depending on the evaluation of key indicators to determine the weight and value of selected indicators of science, objectivity and accuracy. Therefore, BP neural netwo

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Whether the BP neural network model can accurately and reflected comprehensively in athletics sports exists the objective regularity, the key is decided by each appraisal target determination as well as the target weight value selection scientific nature, the objectivity and the accuracy.Therefore,

BP neural network model is the ability to accurately and comprehensively reflect the objective laws existing in the sports, determination of key depends on the evaluation indicators, as well as scientific, objectivity and accuracy of the index weight value selected. Therefore, in the application of

BP neutral network model accurately and comprehensively reflect the objective laws existing in athletic sports depends on the identify and index weight value evaluation index of selected scientific accuracy, objectivity and. Therefore, in the application of BP neural network in competitive sports, i