With the rapidly development of world economy and rapidly growth of population, it makes the demand for various natural resources increase day by day, especially non-renewable resource.
随着当今世界经济的飞速发展和人口数量的快速增长，使得对各种自然资源的需求量日益增加，特别是以石油为代表的不可再生资源。
With the rapidly development of world economy and rapidly growth of population, it makes the demand for various natural resources increase day by day, especially non-renewable resource.
随着当今世界经济的飞速发展和人口数量的快速增长，使得对各种自然资源的需求量日益增加，特别是以石油为代表的不可再生资源。
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