In fact, the first oil boom in the United States - which began exactly 150 years ago in Western Pennsylvania - was sparked by the kerosene market.
实际上，150年前宾夕法尼亚州的煤油市场的看好，引发美国历史上第一次石油繁荣。
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Charles R. Fisher, a professor of biology at Pennsylvania State University, has studied the alien communities and says some are now in the path of the undersea oil plume.