a lever that reverses the motion of a mechanism; spec. = reverse lever n. at reverse, adj. adv.compounds 2.
| 单词 | θ214378 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > cog or gear > which allows change of speed or direction > parts of (9) reversing lever1822 a lever that reverses the motion of a mechanism; spec. = reverse lever n. at reverse, adj. adv.compounds 2. reverse lever1839 a lever for engaging a reverse gear or for putting a vehicle in reverse. change-speed1881 (a) adj. designating a gearing whose speed can be varied during operation, typically consisting of a set of differently sized gearwheels and a… reverse1882 Reverse gear on a motor vehicle; the position of the gear lever or selector corresponding to this. Also in extended use. Cf. phrases 1e. Johnson bar1884 In a vehicle: a control lever with several different positions and a sprung trigger which must be depressed in order to move the lever from one… gate1906 technical. An arrangement of slots, usually in the shape of the letter H, through which the lever of a gear-box is moved to engage different gears… synchromesh1929 A mechanism that facilitates gear-changing in a motor vehicle by automatically causing gearwheels to rotate in synchronism before they engage… hot shift1971 a mechanism enabling a change of gear to be made while a vehicle is moving without interrupting the drive to the wheels. preselector1979 A gearbox that enables a driver to select the next gear at any time before the change is actually made. Usually attributive. |
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