propagation

英 [ˌprɒpə'ɡeɪʃ(ə)n]

美

n.  传播; 扩展; 宣传; 培养

复数：propagations　

CET6GRE医学

BNC.12741 / COCA.15569

柯林斯词典

• VERB 宣传；传播；使普及
  If peoplepropagatean idea or piece of information, they spread it and try to make people believe it or support it.
  1. They propagated political doctrines which promised to tear apart the fabric of British society.
     他们鼓吹能颠覆英国社会结构的政治学说。
• VERB 繁殖，培植（植物）
  If youpropagateplants, you grow more of them from the original ones.
  1. The easiest way to propagate a vine is to take hardwood cuttings...
     栽培葡萄最简便的方法就是硬条扦插。
  2. The pasque flower can be propagated from seed.
     欧白头翁可以通过种子进行繁殖。

英英释义

noun

• the act of producing offspring or multiplying by such production
  Synonym:generationmultiplication
• the spreading of something (a belief or practice) into new regions
  Synonym:extension
• the movement of a wave through a medium

双语例句

• The mechanism of the sympathetic inrush and the propagation in system are analyzed.
  本论文对和应涌流产生的机理及其在系统中的传播进行分析；
• Earth-ionosphere waveguide radio wave propagation for the production and transmission of radio broadcasts.
  地-电离层波导电波传播广播制造和传送的地方。
• Based on the assumption of single-scattering, atmospheric propagation model of non-line-of-sight optical scattering communication system is studied.
  在单次散射假定下，研究了非视线光散射通信系统的大气传输模型。
• The delay due to the carry propagation through the adder stages can be minimized when a carry-look-ahead scheme is used.
  采用越级进位方式可以减小逐级进位造成的延时。
• Numerical study on effect of joints on blasting wave propagation in rock mass;
  在实验的基础上，研究了电磁场对瓦斯爆炸过程中火焰传播和爆炸波的影响。
• The behaviours of fracture, fatigue and fatigue crack propagation in a cast magnesium alloy are systematically studied.
  本文系统地研究了铸造镁合金的断裂，疲劳和疲劳裂纹扩展性能。
• In this paper, the wave propagation characteristics of infinite cylindrical shells with circumferential surface crack are investigated.
  研究了振动波在含有环向表面裂纹的无限长圆柱壳中的传播特性。
• In this thesis we investigate the beam propagation and amphoteric refraction in a Uniaxially anisotropic crystal.
  本文在理论上研究了单轴晶体中的光束传输和正负折射现象。
• The propagation of stress waves in solids can be considered as a part of the field of acoustics or ultrasonics depending on the conditions.
  应力波在固体中的传播，根据其条件可视为声场或超声场的一部分。
• The sound propagation in duct with non-locally reacting liner is discussed in this paper.
  本文对声波在空腔非局域反应声衬管道内的传播进行了研究。