The verified reserves of oil and natural gas are relatively small, while oil shale, coal-bed gas and other unconventional fossil energy resources have huge potential for exploitation.
已探明的石油、天然气资源储量相对不足，油页岩、煤层气等非常规化石能源储量潜力较大。
The verified reserves of oil and natural gas are relatively small, while oil shale, coal-bed gas and other unconventional fossil energy resources have huge potential for exploitation.
已探明的石油、天然气资源储量相对不足，油页岩、煤层气等非常规化石能源储量潜力较大。
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