main areas of producing grain

• 粮食主产区

main areas of producing grain的用法和样例：

例句

1. More assistance should be given to major grain producing areas.
   加大对粮食主产区的扶持。
2. A floor price was set for the purchase of key grain varieties in some major grain producing areas.
   对部分粮食主产区的重点粮食品种实行最低收购价政策。