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.
热尘埃等离子体中的非线性尘埃声孤波在高阶横向扰动下是稳定的，且尘埃颗粒的温度、低温离子和高温离子的温度和数密度影响尘埃声波的性质。
The temperature of dust grains, low temperature and high temperature ions and the number densities of the ions influence the property of dust acoustic waves.
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.
方法观察模块浓度的不同所致颜色与透明度的变化，并对PAA模块的声学特性包括密度、声速及声衰减进行测量。
Methods The color and transparency of different concentration phantoms were observed. Properties including density, acoustic speed and acoustic attenuation of PAA gel phantom were measured.
关于碳纳米管的声子谱及振动态密度的计算方法有好几种。
There was several kinds of methods to calculate carbon nanotube's phonon spectrum and the vibrate density of states.
研究表明，影响木结构墙体隔声的因素有墙板的面密度、墙骨的规格和间距、玻璃纤维棉的容重和厚度。
To fabricate wood structure walls with good sound insulation, the paper studied the influences of building details on the sound insulation of wood structure walls.
发现压力和速度主要体现声特征，熵和组分主要体现流特征，而密度和温度既体现声特征又体现流特征。
It is found that the pressure and velocity disturbances run at sound speed, the entropy and components at flow speed, the temperature and density partly at sound speed, partly at flow speed.
我们计算了声子态密度曲线，并与均匀合金的情况及不考虑力常数无序的情况作了比较。
The densities of the phonon states have been calculated and compared with those in the case of the homogeneous alloys and in the case without considering the force-constant disorder.
分析了兰姆波对液体密度变化的敏感情况，提出了一种基于兰姆波技术的测量液体密度微小变化声传感器。
The sensitivity of Lamb wave was analyzed and the working theory of a novel density sensor for liquid based on the Lamb wave technology was presented.
结果显示叠加态时的概率密度随着电子-声子耦合强度的增加而增大，随着量子点受限长度的减小而增大。
The results indicate that the electron probability density increases with increasing the electron-LO phonon strong coupling and decreasing the confinement length.
这些是很好的脂肪，顺便说一声，当牠们帮助降低坏胆固醇(ldl)和提高有益胆固醇(高密度脂蛋白)水平在你的身体。
These are good fats, by the way, as they help lower bad cholesterol (LDL) and increase good cholesterol (HDL) levels in your body.
这些是很好的脂肪，顺便说一声，当牠们帮助降低坏胆固醇(ldl)和提高有益胆固醇(高密度脂蛋白)水平在你的身体。
These are good fats, by the way, as they help lower bad cholesterol (LDL) and increase good cholesterol (HDL) levels in your body.
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