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

• 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。
• He discussed the propagation of waves through the earth's interior.
  他探讨了地震波在地球内部的传播。
• 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 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。
• In acoustics he studied the propagation of sound and musical consonance and dissonance.
  在声学中，他研究了声的传播和音乐的和谐与不和谐。
• This paper has investigated the propagation of relativistic electron beams ( REB) in magnetized plasmas.
  本文研究了相对论电子束在磁化等离子体中的传输。
• 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 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。
• The propagation of spherical electromagnetic wave ( SEW) in a time-varying media of multidimensional space were studied.
  研究了球面电磁波在多维空间时变媒质中的传播特性。
• 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；