precipitate

英 [prɪˈsɪpɪteɪt , prɪˈsɪpɪtət]

美 [prɪˈsɪpɪteɪt , prɪˈsɪpɪtət]

v.  使…突然降临; 加速(坏事的发生); 使突然陷入(某种状态)
adj.  鲁莽的; 草率的; 仓促的
n.  沉淀物; 析出物

过去分词：precipitated　过去式：precipitated　现在分词：precipitating　第三人称单数：precipitates　复数：precipitates　

CET6TOEFLIELTSGRETEM8

Collins.1 / BNC.8706 / COCA.10236

牛津词典

verb

• 使…突然降临；加速（坏事的发生）
  to make sth, especially sth bad, happen suddenly or sooner than it should
  1. His resignation precipitated a leadership crisis.
     他的辞职立即引发了领导层的危机。
• 使突然陷入（某种状态）
  to suddenly force sb/sth into a particular state or condition
  1. The assassination of the president precipitated the country into war.
     总统被暗杀使国家骤然陷入战争状态。

adj.

• 鲁莽的；草率的；仓促的
  happening very quickly or suddenly and usually without enough care and thought

noun

• 沉淀物；析出物
  a solid substance that has been separated from a liquid in a chemical process

柯林斯词典

The verb is pronounced /prɪ'sɪpəteɪt/. The adjective is pronounced /prɪ'sɪpɪtət/. 动词读作 /prɪ'sɪpəteɪt/，形容词读作/prɪ'sɪpɪtət/。


• VERB 使（通常指不好的事件或形势）突然发生；加速
  If somethingprecipitatesan event or situation, usually a bad one, it causes it to happen suddenly or sooner than normal.
  1. The killings in Vilnius have precipitated the worst crisis yet...
     维尔纽斯的几起谋杀事件导致了迄今为止最严重的危机。
  2. A slight mistake could precipitate a disaster.
     小错误可能会招致大灾难。
• ADJ-GRADED （行动或决定）仓猝的，贸然的，突然的
  Aprecipitateaction or decision happens or is made more quickly or suddenly than most people think is sensible.
  1. I don't think we should make precipitate decisions...
     我认为我们不应该贸然作出决定。
  2. Many of our current problems have been caused by precipitate policy making in the past.
     我们目前的很多问题都是由过去仓猝制定的政策导致的。

双语例句

• Study on the composition and crystal shape of the precipitate obtained by struvite precipitation from wastewater for phosphorous recovery
  鸟粪石法回收废水中磷的沉淀物的组成和晶形
• Effects of low-temperature annealing on oxygen precipitate nucleation in heavily arsenic-doped Czochralski silicon;
  研究了五种不同的热处理气氛对直拉硅中氧沉淀及其诱生缺陷的影响。
• Add the reagent until precipitate begins to form in the flask.
  加试剂直到烧瓶底部形成沉淀物。
• The clarifying functions of wort clarificant on wort were studied and its using amount and effects of removing precipitate were tested and contrasted.
  研究了应用麦汁澄清剂对麦汁的澄清作用，对其用量、除浊效果进行测试对比。
• This feedback can precipitate corresponding changes in self-expression and behavior.
  反馈可以加速我们自我表现和行为的相应改变。
• All gravimetric measurements require some sort of crucible or dish to hold the residue or precipitate.
  所有重量分析需要某种坩埚或器皿保留残渣或沉淀物。
• This precipitate dissolves in an excess of aqueous ammonia.
  这个沉淀能溶解在过量的氨水中。
• In order to avoid the photolysis of ferric ferrocyanide precipitate, the operation can only be done in dark.
  操作宜在阳光直射不到的阳暗处进行以避免亚铁氰化铁沉淀的光解反应发生。
• The arsenate is usually formed in oxidation zones in contact with the atmosphere and free oxygen, and arsenic will precipitate with ferric hydroxide.
  在与大气和游离氧接触的氧化带中，常形成砷酸盐，而且砷与氢氧化铁一起沉淀。
• By misleading people and their leaders, they may well precipitate revolution rather than recovery.
  他们误导民众和领导人，结果很可能诱发革命，而无助于经济复苏。