煉油(oil-refining)-考研英語作文(編輯修改稿)
2025-04-14 01:17 本頁面
【文章內(nèi)容簡介】 leum. the first oil well was drilled by . drake, a retired railroad conductor. in 1859 he began drilling in titusville, pennsylvania. the whole venture seemed so impractical and foolish that onlookers called it drake＇s folly. but when he had drilled down about 70 feet(21 meters), drake struck oil. his well began to yield 20 barrels of c
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