precipitates是什么意思？

precipitates

• v. （突如其来地）使发生( precipitate的第三人称单数 )，促成，猛然摔下，使沉淀；

例句

• Precipitates are usually collected by centrifugation at intervals. 常常是用离心法分段收集沉淀的.
• When pollen maturating , many small calcium precipitates distributed in its cytoplasm, especially in nucleus. 接近开花时的成熟花粉粒细胞质中, 细小的钙颗粒主要分布在营养细胞和生殖细胞中.
• Near anthesis, synergids formed filiform apparatus in which abundant calcium precipitates accumulated pollen tubes entering. 开花当天助细胞珠孔端的丝状器中聚集了大量的钙颗粒.
• This important carbide precipitates both inter and intragranularly. 这种重要的碳化物向晶体内和晶体间沉淀.
• Water precipitates camphor from its alcoholic solution. 水能把樟脑从其酒精溶液中淀析出来.

柯林斯高阶英汉双解学习词典释义

• VERB
  使（通常指不好的事件或形势）突然发生；加速
  If something precipitates an event or situation, usually a bad one, it causes it to happen suddenly or sooner than normal.
  例句
  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。 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
  A precipitate action or decision happens or is made more quickly or suddenly than most people think is sensible.
  例句
  I don't think we should make precipitate decisions... 我认为我们不应该贸然作出决定。 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。