约翰·D·洛克菲勒：洛克菲勒回忆录·摘录 80

We soon discovered, as the business grew, that the primary method of transporting oil in barrels could not last. The package often cost more than the contents, and the forests of the country were not sufficient to supply cheaply the necessary material for an extended time. Hence we devoted attention to other methods of transportation, adopted the pipe-line system, and found capital for pipe-line construction equal to the necessities of the business.

出处： https://www.gutenberg.org/ebooks/17090
定位：Chapter IV, excerpt 80 · 核对日期：2026-10-19 · 核验：短摘录

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