accelerator

accelerator
noun
  1. something which brings about acceleration, in particular
    加速之物,尤指
    ■a device, typically a foot pedal, which controls the speed of a vehicle's engine
    油门
    ■(Physics)an apparatus for accelerating charged particles to high velocities
    (物理)(使带电粒子加速的)加速器
    ■a substance that speeds up a chemical process, typically the vulcanization of rubber or the curing of a plastic
    (化学过程的)加速剂;促进剂(尤指橡胶硫化或塑料固化剂)
    ■(Computing). short for accelerator board
    (计算机)。 accelerator board 的简称
英语宝典
考试词汇表