catalyst 的定义
- Chemistry. a substance that causes or accelerates a chemical reaction without itself being affected.
- something that causes activity between two or more persons or forces without itself being affected.
- a person or thing that precipitates an event or change: His imprisonment by the government served as the catalyst that helped transform social unrest into revolution.
- a person whose talk, enthusiasm, or energy causes others to be more friendly, enthusiastic, or energetic.
catalyst 近义词
something which incites activity
更多catalyst例句
- South Africa provides 84% of the platinum group metals needed for fuel cells and automotive catalysts.
- That time spent in Ghana and across West and sub-Saharan Africa became my catalyst for starting Tala, and I regularly encourage my team members to take on a “figure it out!”
- Floyd’s death was the catalyst for this year’s earlier protests, and Blake’s shooting reignited the demonstrations.
- So, more than anything, the endorsement was a catalyst for us to actually say let’s do something, we don’t have to sit around and wait on what are we going to do, endorse or not endorse.
- Brittney Sykes is a defensive catalyst for the Sparks and dramatically improved her efficiency from two.
- But the copper performs another important function: working as a catalyst in the distillation process.
- Brunch is a catalyst, brunch is the enforcer of different-rules-for-the-weekend.
- We are proud that our film could be a catalyst for even a small change in the ways these boys are treated in China.
- Other non-design services, like Adobe Business Catalyst, which hosts email fundraising campaigns and e-commerce, also went down.
- And that question is the catalyst for all the ambiguity throughout the film.
- This simple act may have been the catalyst which gave Burl the solution to the problem.
- We may, then, compare the catalyst to what is known as "a good mixer" in society.
- The tactful hostess, the salon leader, is a social catalyst.
- When hydrogen peroxide comes in contact with a catalyst, such as permanganate of potash, it breaks down into oxygen and water.
- The catalyst which was necessary for the final reaction would be brought to him by Polter.