名词 catalyst:

1. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

2. something that causes an important event to happen

catalystn.催化剂；刺激因素catalyst pack催化剂包catalyst line催化剂管线, 催化剂输送线catalyst dust催化剂粉尘catalyst life触媒使用寿命catalyst case催化剂室,反应室,反应器catalyst tank催化剂箱catalyst loss催化剂损耗catalyst unit催化剂设备catalyst agent催化剂catalyst layer催化剂层

1. Those catalysts are used in small tubular reactors.
   那些催化剂用于小型管式反应器。
2. Metal oxides from oil consumption damage catalysts.
   金属氧化物破坏催化剂。