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

• Apart from yield, domestication has altered many characteristics of crop plants, including loss of dormancy from the seed and loss of dispersal mechanisms.
  除产量提高外，驯化还改变了农作物的许多性状，包括失去种子休眠期和传播机制。
• 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。
• 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。
• 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。
• This, with all available information on topography, primary and secondary mineral dispersal, helps to locate the mineralization.
  这个和所有关于地形、原生和次生矿物分布的信息有助于圈定矿化。
• The means of dispersal are wind, water and animals.
  传播的媒介有风、水和动物。
• 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。
• This research provides indirect evidence for dispersal limitation and niche theory.
  本研究为扩散限制和生态位理论提供了间接的证据。
• The deformation and breakup of liquid droplet is important in fuel explosive dispersal.
  液滴变形和破碎是燃料抛撒问题的重要过程。
• 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。