Seed - using watermelon is one of important economic crop.

籽瓜是重要的经济作物之一.

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And economic crop receives kind of machinery, grazing machinery and forestry machinery demand to increase apparently.

而经济作物收种机械 、 牧草机械和林业机械需求明显增大.

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Of the economic crop such as cotton, earthnut cultivate an area to increase in quantities.

棉花 、 花生等经济作物的种植面积大量增加.

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