In the same time, the catalysts were selected and modified.
同时，对催化剂进行了制备并筛选。
参考来源 - 催化氨化合成叔丁胺的研究Activated semi-coke catalysts were prepared to oxidize NO to NO2 at low temperature.
制备了活性半焦催化剂用于在低温下将NO氧化为NO2。
参考来源 - 活性半焦低温催化氧化NO的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： accelerator
"the invasion acted as a catalyst to unite the country"
以上来源于: WordNet
N-COUNT You can describe a person or thing that causes a change or event to happen as a catalyst. 催化剂
I very much hope that this case will prove to be a catalyst for change.
我非常希望这件事终将成为促成变化的催化剂。
N-COUNT In chemistry, a catalyst is a substance that causes a chemical reaction to take place more quickly. 催化剂
It is known that bimetallic and trimetallic catalysts offer improved properties over single metal catalysts.
已知双金属和三金属催化剂提供了优于单金属催化剂的性能。
The catalysts can divide into two kinds: the transition metal bifunctional catalysts and oxycarbide catalysts of transition metals.
催化剂可以分为两种：过渡金属双官能催化剂和过渡金属的碳氧化物催化剂。
There seem to be two catalysts.
这里面似乎存在两项推动因素。
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