crop relative yield 作物相对产量
With the relative water consumption of each growing stage as input and relative crop yield output, a BP artificial neural network structure containing a single hidden layer is established.
将各生育阶段的耗水量作为输入，将作物单产作为输出，构建了具有1个隐含单元层的BP神经网络结构。
We found that US yield in non-GM wheat is also falling further behind Europe, demonstrating that American choices in biotechnology penalise both GM and non-GM crop types relative to Europe.
我们发现，美国非转基因小麦产量也落后于欧洲，演示美国人生物技术中的选择使转基因以及非转基因作物类型都落后于欧洲。
Nowadays, there is scarce domestic research on area yield crop insurance, let alone relative actuarial research.
目前，国内对农作物区域产量保险的研究较为少见，农作物产量保险精算研究则更为薄弱。
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