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saltation

n.  跳跃;跳动; (沙石、泥等的)跃移; 突变,飞跃

复数:saltations 

化学

英英释义

noun

  • a light, self-propelled movement upwards or forwards
      Synonym:leapleapingspringboundbounce
    1. taking a series of rhythmical steps (and movements) in time to music
        Synonym:dancingdanceterpsichore
      1. an abrupt transition
        1. a successful leap from college to the major leagues
        Synonym:leapjump
      2. (genetics) a mutation that drastically changes the phenotype of an organism or species
        1. (geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface

          双语例句

          • We first consider this minimum velocity for horizontal flow, the saltation velocity.
            首先讨论在水平流动时的最低速度,即沉积速度。
          • My thought saltation has been possibly very quick!
            可能我的思想跳跃太快了!
          • This dissertation focuses on the study of field observation and numerical simulation of unsteady sand saltation in nonstationary wind field.
            本学位论文针对非定常风场中的跃移JxL沙流开展了野外观测与数值模拟方面的研究。
          • When a particle is dislodged from the surface it moves downstream by suspension, surface creep, or saltation.
            颗粒脱离表面后,以悬浮,爬行或跳跃形式向下游运移。
          • Temperature field dynamic response to the saltation of casting speed, superheat and cooling water is investigated in this paper based on a lot of simulation computing.
            本文通过大量的仿真研究了当拉速、过热度和冷却水量发生突变时,铸坯凝固温度场的动态响应过程。
          • Discrete Dynamics Simulation on Developing Process of Aeolian Sand Saltation
            风沙跃移运动发展过程的离散动力学模拟
          • Simulation to the sand saltation is carried.
            同时采用单一轨迹法对沙粒的跃移进行了数值模拟。
          • Numerical Simulation and Experiment on the Sand Saltation Trajectory
            沙粒跃移轨迹的数值模拟与实验研究
          • The trajectory and the movement parameters of saltation were obtained.
            计算了跃移轨迹,得到了跃移的诸运动要素。
          • Munitions were canoed across the river. This type of transport is called saltation.
            军火用独木舟搬运过河。这种类型的搬运称为河底滚沙。