利用BP神经网络，以某热轧厂粗轧机组数据库中的数据为训练样本，采用两种训练方案，对粗轧过程轧制力进行预测。
Based on the measured data from a hot strip mill, the rolling force in roughing was predicted by means of BP neural networks which adopted two kinds of training methods.
这些数据的有机组合使得计算比如烟雾暴露的中位水平成为了可能。
The aggregation of data makes it possible to identify, say, a median level of smog exposure.
团队合作会随时间推移而改善：美国国家运输安全委员会发现，其民用航空数据库中，73%的事故发生在机组人员一起飞行的第一天。
Teamwork improves with time: America's National Transportation Safety Board found that 73% of the incidents in its civil-aviation database occurred on a crew's first day of flying together.
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