catalyst ['kætəlist]

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n. �߻������̼�����

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n. accelerator

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n.   anticatalyst

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1. War is a catalyst to help them to choose.
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2. Catalyst addition not only reduces the residual ozone content by 60.
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3. The article analyzes development trends of world polypropylene catalyst and technology and introduces development orientation of new polypropylene products.
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n.
  1. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affec
  2. something that causes an important event to happen

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catalyst
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Catalyst pump
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CAT Catalyst
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negative catalyst
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heterogeneous catalyst
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