reverse gear

短语

[化] 逆转装置

词形变化

reverse gears 复数 reverse gears

释义与例句

n.
  1. 1.

    A gear (setting) in a vehicle's transmission which, when selected, makes the vehicle move backward. (Denoted with symbol R on a shifter's labeling.)

    可数 不可数 工程

    Near-synonym: reversing gear

    The reverse gear of a Ford Model T was engaged with a foot pedal.

  2. 2.

    A gear fitted to a machine which allows it to run in the direction opposite to normal operation.

    可数 不可数 工程

    Near-synonym: reversing gear

    This old lathe has a reverse gear, but it wouldn't be used under most conditions, and in fact its use is unsafe under most conditions because the chuck is attached with nothing but a right-hand screw thread!

词汇关系