随着激光能量密度的增加，声表面波的幅度由线性变化转换为非线性变化。
With the increase of the incident power density, the amplitude of SAW changes from linear to nonlinear.
对SBS产生过程做了理论研究，分析了介质声子寿命、泵浦脉冲形状和功率密度等因素对SBS的影响。
Process of SBS' generating whose effecting factors include the photo-life in the medium, the shape of pump pulse and the power density was theoretically studied.
随着聚合物溶液浓度的增加，其声传播速度减小，其密度值也逐渐减小，但其表观粘度值逐渐增大。
With the concentration of the polymer solution increasing, acoustic velocity of the polymer solution decreases, and the polymer density decreases too, but the apparent viscosity increases.
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