calculation factor造句

(4 ) the application of artificial neural network in the field was studied . by bp ( back-propagation networks ) neural network and rational choice of the calculation factor, the relation between the improved mixture composition and combustion rate, and that between the charge of ignition rocket and p-t curve were simulated . the model could exhibit in essence the inherent relation and the forecasted results were in good agreement with the actual testing results, which showed that the model could be used as a guide for the design of the composition and the ignition engine, and that artificial neural network could be employed in the field for the purpose of reducing experimental work of hazardous materials
(4)对人工神经网络在该领域的应用进行了研究，先后利用误差反传神经网络(bp网络)，并选择合理的计算因子，分别对改进耐水点火药配方与燃烧速度以及点火发动机装药与p-t曲线进行了模拟，模型基本能够反应它们之间的内在联系，预测结果与实际测试结果基本吻合，模型基本能够指导药剂配方和点火发动机的设计，表明了人工神经网络可以应用于该领域以期达到减少危险品试验的目的。
It's difficult to find calculation factor in a sentence. 用calculation factor造句挺难的