1. Expert believe that the warm temperature of the ocean can be used in a way similar to the steam in a steamship. 专家相信。可以像使用蒸汽船中的蒸汽一样的（原理）来利用温暖的海洋温度。
2. Until the middle of the century the new facilities in the handing of steel and the railway and steamship produced no marked political consequences. 直到那个世纪中叶，用于处理钢铁、铁路、汽船的新设备并没有产生明显的政治后果。
3. Traveltransportation were changed when the steamship was invented, they were changed even more when the locomotive was invented by George Stephenson in 1814. 发明蒸汽船之后，人们的旅行和交通运输都改变了。而在1814年，乔治·史蒂芬逊发明蒸汽机车后，变化更大了。
