第八章 The Industrial Revolution 工业革命
书迷正在阅读：神级扮演：从小丑开始、地下城之主、全球天选：开局觉醒百倍经验天赋、妖魔入侵：我成救世大剑仙、名侦探柯南续集、火影：等会，我先戴个写轮眼、神奇宝贝之无尽轮回、这个世界的穿越者有点多、异界游戏王之虚空变、潜伏火箭队，只为超梦
the lathe， planing and shaping machines powered by these engines， enabled all the metal parts of the engines to be easily and accurately cut and in turn made it possible to build larger and more powerful engines. ??Until about 1800， the most common pattern of steam engine was the beam engine， built as an integral part of a stone or brick engine–house， but soon various patterns of self–contained portative engines were developed， such as the table engine. Towards the turn of the 19th century， the Cornish engineer Richard Trevithick， and the American， Oliver Evans began to construct higher pressure non–condensing steam engines， exhausting against the atmosphere. This allowed an engin