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 influence of radio propagation on the radio coverage uniformity in mobile communications systems is analyzed.
  本文分析了移动通信系统中电波传播对覆盖均匀性的影响。
• 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。
• Characteristics of wave propagation in grouted rockbolt were investigated with numerical simulation, experimental measurement and theoretical analysis.
  用理论分析、数值模拟和实验测试的方法研究了自由锚杆和锚固锚杆中的波传播特性。
• 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。
• 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。
• 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。
• 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 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。
• 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。
• 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。