Whether in an individual coal pit, oil, or gas field, a nation or the planet as a whole, fossil fuel reserves and production tend to follow a bell curve over time.
无论是在个别的煤矿、石油或天然气场、一个国家或整个地球，矿物燃料储量和生产随著时间的推移，往往遵循钟形曲线。
Whether in an individual coal pit, oil, or gas field, a nation or the planet as a whole, fossil fuel reserves and production tend to follow a bell curve over time.
无论是在个别的煤矿、石油或天然气场、一个国家或整个地球，矿物燃料储量和生产随著时间的推移，往往遵循钟形曲线。
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