按照比较优势理论，我国应净进口粮食这一土地密集型产品。
According to the theory of comparative advantage, China should be a net importer of grain.
总体上而言，在既定条件下，与土地密集型农产品相比，劳动密集型农产品在国际市场上所占据的市场份额较大。
In general, compared with land-intensive, the labor-intensive agricultural products have a huge market share in certain condition.
加入WTO后，我国农产品中的粮食、油料、棉花等土地密集型作物处于比较劣势地位，生产成本明显高于国际市场；
Entry WTO, the compared advantages of land-concentrated agri-product such as grain, oil and cotton are decreased gradually, and their product cost is higher then the cost of international market.
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