dispersal

英 [dɪˈspɜːsl]

美 [dɪˈspɜːrsl]

n.  分散; 疏散; 散布

复数：dispersals　

TOEFLIELTS

BNC.12682 / COCA.15305

牛津词典

noun

• 分散；疏散；散布
  the process of sending sb/sth in different directions; the process of spreading sth over a wide area
  1. police trained in crowd dispersal
     在疏散人群方面受过训练的警察
  2. the dispersal of seeds
     种子的播撒

柯林斯词典

• N-UNCOUNT 散开;散布;传播
  Dispersalis the spreading of things over a wide area.
  1. Plants have different mechanisms of dispersal for their spores.
     植物传播孢子的方法各不相同。
• N-UNCOUNT 疏散;分散
  Thedispersal ofa crowd involves splitting it up and making the people leave in different directions.
  1. The police ordered the dispersal of the crowds gathered round the building.
     警方命令聚集在建筑物四周的人群散开。

英英释义

noun

• the act of dispersing or diffusing something
  1. the dispersion of the troops
  2. the diffusion of knowledge
  Synonym:dispersiondisseminationdiffusion

双语例句

• These guidelines are intended to prevent the inadvertent exposure and dispersal of recombinant molecules;
  这些指导方针的目的在于避免无意透漏和散布基因重组分子；
• Seed dispersal of the pioneer shrub Rhodomyrtus tomentosa by frugivorous birds and ants
  鸟类和蚂蚁对桃金娘种子传播的初步研究
• Seeds dispersal by rain is especially important in extremely hot and dry deserts.
  在极端干热的沙漠里，通过雨水传播种子尤其重要。
• The police ordered the dispersal of the crowds gathered round the building.
  警方命令聚集在建筑物四周的人群散开。
• Relatively rapid and widespread migration, dispersal apparently account for this.
  比较迅速而广泛的迁移，散布就明显说明了这一点。
• Fog dispersal research has since followed the line.
  自那时以来消雾研究一直遵循这个方向。
• Habitat fragmentation poses a wide spread threat to biodiversity by disrupting seed production and dispersal.
  生境片断化扰乱了种子的生产和扩散机制，越来越严重地威胁着生物多样性。
• Prolonged heat can, moreover, enhance production of smog and the dispersal of allergens.
  持续的高温也提高了烟雾的产量和过敏原的散布。
• Animals may serve as a vehicle for viral transmission. The means of dispersal are wind, water and animals.
  动物可能成为病毒传播的媒介。传播的媒介有风、水和动物。
• The pollen activity of hickory in pollen dispersal period and different storage conditions was determinated using FCR ( fluorochrome reaction).
  利用FCR方法对不同散粉期和不同贮藏条件下山核桃花粉生活力进行了测定。