The paper applied the information diffusion model of non-parametric estimation to project the level of productivity risks for cereals, rice, corn and wheat at major grain-producing area.
本文采用非参数估计的信息扩散模型测算了我国粮食主产区水稻、玉米、小麦和棉花产量损失风险水平。
The rule change limits a non-grain firm to holding 600 shipping certificates or warehouse receipts for soybean, corn, wheat, oat and rough rice futures;
该变更规则对非谷物公司持有的装运单或仓单数量进行了限定：大豆、玉米、小麦、燕麦及糙米期货不得超过600份；
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