Stephenson laid down new rails at Killingworth with half-lap joints, or extending over each other for a certain distance at the ends, instead of the butt joints that were formerly used. 鲁伯特·萨金特·荷兰.历史性发明.
All the bridges over these had been destroyed, and the rails taken up and twisted by the enemy. 尤利西斯·格兰特.U．S．格兰特的个人回忆录.
If extended in straight lines, it would build a track of two rails to the moon, and more than a hundred thousand miles beyond it. Edward W. Byrn.十九世纪发明进展.
In 1804, at Pen y Darran, South Wales, a third engine was built, which was the first steam locomotive ever to run on rails. Edward W. Byrn.十九世纪发明进展.
The convertible rails, however, because of their rigidity, are more desirable than the convertible cushions. 佚名.神奇的知识之书.
He realized that the road and the rails were almost as important as the engine itself. 鲁伯特·萨金特·荷兰.历史性发明.
The rails were insulated from the ties by giving them two coats of japan, baking them in the oven, and then placing them on pads of tar-impregnated muslin laid on the ties. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
There was a general rush to the carriages, and Mr. Huskisson, in trying to enter his carriage, slipped backwards and fell upon the rails. 弗雷德里克·科利尔·贝克维尔.伟大的事实.
Current was fed from a dynamo to the motor through a central third rail, the two outer rails being joined together as the negative or return circuit. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The railway system of Great Britain was commenced without sufficient attention to the determination of the best width apart of the rails. 弗雷德里克·科利尔·贝克维尔.伟大的事实.
The rails form a semicircle at the post, with the ends of the arc pointing down the alley. 佚名.神奇的知识之书.
But the Blenkinsop engine was found to be very unsteady, and tore up the tram-rails, and when its boiler blew up the owner decided that the engine was not worth the cost of repair. 鲁伯特·萨金特·荷兰.历史性发明.
The flanges are sunk flush into the top of the rail; thus the pocket iron spans the interstices between the rails. 佚名.神奇的知识之书.
I watched the ties and the rails for any trip-wires or signs of explosive but I saw nothing. 欧内斯特·海明威.永别了,武器.
No special precautions were taken to insulate the rails from the earth or from each other. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.