| 单词 | parallel rod |
| 释义 | > as lemmasparallel rod parallel rod n. now rare = coupling-rod n. at coupling n. Compounds 2; (also) a similar mechanism attached to the rudder on a ship. ΘΚΠ society > travel > rail travel > rolling stock > [noun] > locomotive > coupling-rod connecting wheels parallel rod1813 connecting rod1839 coupling-rod1869 coupling1874 coupler1879 1813 Arch. of Useful Knowl. Jan. 202 The rudder, its yokes, parallel rods, &c.,..carry its movements to the tillers on deck... In this manner the boat never puts about. 1853 Sci. Amer. 12 Nov. 68/1 An improved coupling rod,..extending the strap of the connecting rod beyond the box of the crank pin of the driving axle, to hold a pin to be received in a box attached to the parallel rod. 1913 L. V. Ludy Locomotive Boilers & Engines 99 The parallel or side rods are also made with an I-section in order to obtain a maximum strength with a minimum weight of metal. < as lemmas |
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