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 relation between the chirp in phase of soliton pulse and soliton propagation is discussed in this paper.
  讨论了光孤子传输中，由脉冲包络的相位变化产生的啁啾与孤子传输的关系。
• The propagation of a linear elastic crack was simulated by displacement discontinuity method ( DDM).
  采用位移不连续法（DDM）对裂纹的扩展进行了数值模拟。
• This paper studied the virus propagation characteristics, which depended on the topology of the entire network.
  研究了依存于网络拓扑的病毒传播特征，并提出了一个通用的动态系统网络模型。
• 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；
• This is formed by the cracks oscillating about the centerline in the direction of crack propagation.
  这是由于在裂纹的传播过程中，裂纹尖端沿着传播方向的中线上下振荡所形成的。
• 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。
• 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。
• With kernel medium model, sound propagation characteristic in grain is studied.
  从颗粒介质模型出发，对粮食中声传播性质进行了研究。
• In this paper, the elastic wave propagation in honeycomb materials is investigated based on the dispersion relations.
  通过研究蜂窝材料的弹性波频散关系，分析了其弹性波传播特性。
• Numerical simulation and experimental testing are used to study wave propagation characteristics in grouted rock bolt.
  采用数值模拟和实验模拟的方法对锚杆–锚固体系中的波动特征进行研究。