grain logistics的用法和樣例：
例句
- The scheduling of grain logistic processes is a combinatorial optimization problem.
摘要糧食物流過程的調度是一個組合優化問題。 - This article aims towards promoting the formation of grain logistics, which conforms to the grain circulative rule and the product-sale trait.
意在對符合我國糧食流通規律和產銷特點的糧食物流新格局的形成起到促進作用。
