Coal production climbed at an ever-accelerating pace. Half a century after the first oil well was drilled in 1859, oil and gas were beginning to displace coal as the fuel of choice.
在1859年第一口石油钻井出油之后的半个世纪以来，石油和天然气开始逐步取代煤而作为燃料。
Coal production climbed at an ever-accelerating pace. Half a century after the first oil well was drilled in 1859, oil and gas were beginning to displace coal as the fuel of choice.
在1859年第一口石油钻井出油之后的半个世纪以来，石油和天然气开始逐步取代煤而作为燃料。
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