单词：catalyst case
catalyst case的用法和样例：
例句
- Catalyst returning to the reactor may not be completely regenerated because of insufficient time in the regenerator.因为催化剂在再生器中停留时间不足，故返回反应器的催化剂可能未被完全再生。
- The physical resistance of catalysts plays a major role in catalyst selection and reactor design parameters.催化剂的物理强度在催化剂选择和反应器设计参数方面起着重要的作用。
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