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catalyst ['kætəlist]    添加到生词本 复制网址
基本释义
  • n. 触媒剂
    催化剂
英英解释

  • 　2个名词解释

    1. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
      [同] accelerator, catalyst
      [反] anticatalyst
    2. something that causes an important event to happen
      [例]
      • the invasion acted as a catalyst to unite the country