我国人口众多，人均占有耕地数量低，且后备资源缺乏。
Our country population is numerous, per capita has farmland amount low, and mothball resource lack.
目前中国油气资源勘探和开发面临后备可采储量不足，低勘探程度区域受到重视。
At present, the areas of low degree of prospecting are paid much attention to for insufficient recoverable backup reserves during exploration and development of oil-gas resources.
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