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

• The usual vehicles of dispersal are wind ( anemochory), water ( hydrochory).
  通常传播的媒介物是风（风播），水（水播）。
• 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。
• 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。
• The application of short-fiber-reinforced-SiC composites has suffered from the dispersal uniformity of short fiber all along.
  短纤维的分散均匀性一直是短纤维复合材料应用受限的主要原因。
• The positive equilibrium is stable if the dispersal rate is larger than the maximum of the interval.
  当扩散率继续增大时，该系统的正平衡点又变为稳定的。
• Plants have different mechanisms of dispersal for their spores.
  植物传播孢子的方法各不相同。
• 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。
• 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；
• 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。
• 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