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ac·cel·er·a·tor AHD[ăk-sĕlʹə-rā'tər] D.J.[ækˈseləˌreɪtə]K.K.[ækˈsɛləˌretɚ]n.（名词）- A device, especially the gas pedal of a motor vehicle, for increasing speed.加速装置：加速器，如可以用来加速的汽车油门
- Chemistry A substance that increases the speed of a reaction.【化学】 加速剂，催化剂：加快反应速度的物质
- Physics A device, such as a cyclotron or linear accelerator, that accelerates charged subatomic particles or nuclei to high energies. Also called In this sense, also called atom smasher 【物理学】 加速器：一种装置，如回旋加速器或直线加速器，可以加快带电亚原子粒子或原子核的运动以达到高能 也作 在此意义上也可称作 atom smasher
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