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Horseshoe Curve 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024

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Seidel, David W. 作者

譯者

2008-7 出版日期

127 頁數

$ 24.85 價格

叢書系列

9780738557076 圖書編碼

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發表於2024-11-10

Horseshoe Curve 在線電子書 epub 下載 mobi 下載 pdf 下載 txt 下載 2024

Horseshoe Curve 在線電子書 epub 下載 pdf 下載 mobi 下載 txt 下載 2024

Horseshoe Curve 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024

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Horseshoe Curve 在線電子書 pdf 下載 txt下載 epub 下載 mobi 在線電子書下載

Horseshoe Curve 在線電子書圖書描述

The Horseshoe Curve is known worldwide as an engineering achievement by the Pennsylvania Railroad. This landmark, located just west of Altoona, opened to traffic on February 15, 1854, and it enabled a railroad line to climb the Allegheny Mountains and the eastern continental divide. The Horseshoe Curveas construction impacted railroad design and development for mountainous terrain everywhere, enabling access to coal and other raw materials essential for the industrial age. J. Edgar Thomson, chief engineer of the Pennsylvania Railroad, is widely recognized for his engineering and design of the Horseshoe Curve, a concept never utilized previously. Today the curve is still in use and sees approximately 70 trains daily. Through vintage photographs, Horseshoe Curve chronicles how this marvel remains one of the vital transportation arteries linking the east and west coasts of the United States.

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