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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

          • The differences between surface creep and saltation are gradual and it is difficult to draw a fixed dividing line.
            表面爬行和跳跃之间的差别是渐变的,它很难划一条固定分界线。
          • Distribution of Initial Velocity of Lift-off Sand Particles in Aeolian Saltation Numerical simulation on influence of diffusion performance on airstream distribution in a room
            风沙流中沙粒起跳初速度分布的探讨风速对室内气流分布影响的数值仿真
          • The pressure drop and saltation velocity predicted by the model are in good agreement with the experimental data from literature.
            用文献实验得到的压降和转捩速度验证了所建模型和计算方法的正确性。
          • Mutation analysis showed that the saltation of sunshine durations at tobacco growth period in western Henan occurred in1981.
            突变分析表明,豫西烟区烤烟生育期的日照时数在1981年发生突变。
          • Particle saltation has both definite respect and stochastic respect.
            推移质颗粒跃移特性具有两重性,既有确定性的一面,也有随机性的一面。
          • Frequency saltation and scope saltation are chosen to simulate the fault signal, which is processed with the algorithm of wavelet and digital filter.
            选取频率突变和幅值突变仿真故障数据,分别采用小波分解和数字滤波的方法进行处理。
          • My thought saltation has been possibly very quick!
            可能我的思想跳跃太快了!
          • 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
          • By using the wavelet transform and the non linear optimization, we calculated parameters and determined the saltation edges of the differential ECG.
            该文应用小波变换对信号突变点检出的理论对微分心电信号进行分析,并用非线性最小二乘法进行参数拟合,确定了突变点的位置。
          • 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。