复式蒸汽机

【一起听英语】瓦特的工作室

蒸汽机的发明带来了工业革命，瓦特为此做出了特别大的贡献，今天我们就一起去看看他的工作室是什么样子的？ Alice: Hello, I'm Alice. Stephen: And I'm Stephen. Alice: And this is 6 Minute English! This week w

发表于:2018-12-27 / 阅读(34) / 评论(0)

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THIS IS AMERICA - B&O Railroad Museum

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辛沛沛NO-BOOK 辛沛沛口语提高版

PEOPLE IN AMERICA - Casey Jones

> PEOPLE IN AMERICA - Casey Jones By George Grow Broadcast: Sunday, June 27, 2004 (THEME) VOICE ONE: I'm Gwen Outen. VOICE TWO: And I'm Steve Ember with PEOPLE IN AMERICA in VOA Special English. Today

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In the layers of clay and sandstone between the seams of coal we often find the remains of plants very well preserved indeed. In the coal itself it is very hard to tell one plant from another, for they have all been crushed together. 在煤层之间的

发表于:2019-02-13 / 阅读(43) / 评论(0)

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And am now on my way to make arrangements for a great improvement I have invented for the application of steam to a locomotive. 我正在从事自己研发的如何将蒸气应用到机车项目的重大改进， My name is Martin Kroller. 我叫马丁

发表于:2019-02-13 / 阅读(36) / 评论(0)

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