| 单词 | joint-chair |
| 释义 | > as lemmasjoint-chair joint-chair n. Railways a chair (see chair n.1 12) supporting the rails at a joint. ΘΚΠ society > travel > rail travel > railway system or organization > [noun] > track > parts and fittings of rails string-piece1789 carriage1816 chair1816 pedestal1816 surface plate1822 web1835 frog1837 switch-bar1837 snake-head1845 fish1847 fish-joint1849 plate nail1849 fishing-key1852 fish-plate1855 joint-chair1856 rail chair1864 railhead1868 lead1871 fish-bar1872 splice-piece1875 fish-plating1881 splice-jointa1884 splice-bar1894 1856 S. C. Brees Terms & Rules Archit. 100 The chairs for receiving the ends of two rails are termed joint, or double chairs. 1889 G. Findlay Working & Managem. Eng. Railway 44 Up to the year 1847 the ends of the rails rested on joint chairs. < as lemmas |
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