| 单词 | reversing lever |
| 释义 | > as lemmasreversing lever reversing lever n. Mechanics a lever that reverses the motion of a mechanism; spec. = reverse lever n. at reverse adj. and adv. Compounds 2. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > cog or gear > which allows change of speed or direction > parts of reversing lever1822 reverse lever1839 change-speed1881 reverse1882 Johnson bar1884 gate1906 synchromesh1929 hot shift1971 preselector1979 1822 R. Eastman in Techn. Repository 2 lvii. 222 Projection on the underside of the carriage, that actuates the reversing lever. 1915 Pop. Mech. Oct. 497/2 Reversing is accomplished by the simple process of swinging the reversing lever. 1971 Tools & their Uses (U.S. Navy Bureau of Naval Personnel) (1973) i. 9 A ratchet handle has a reversing lever which operates a pawl (or dog) inside the head of the tool. 2007 Daily Star (Nexis) 8 Feb. 29 I applied the reversing lever but it [sc. a traction engine] did not come to rest until rolling over Derek. < as lemmas |
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