低频范围 meaning in Chinese

low frequency range

The study proved that fem is an effective and accurate method for the laminated composites " research and designation in middle and low frequency scope
研究结果表明对层合复合降噪材料在中低频范围内的应用，有限元数值方法是一个有效而准确的研究和设计途径。
The results show that there is significant difference between the solution considering and neglecting the radial displacement at lower frequencies but they are identical at higher ones
结果表明，在低频范围内考虑径向运动的解与简化解有较大差别，而在较高频率下两者基本吻合。
The poroelastic modulus could describe pore effect on elastic behavior of porous media such as rocks . from this , gassmann equation which was widely used in seismic exploration and petroleum logging was deduced . this equation was based on linear elasticity assumption and could be used only within low frequency
孔隙弹性模量描述了孔隙对岩石等多孔材料的弹性性质的影响，利用其可导出在地震勘探和石油测井界应用很广的gassamann ，该方程建立在线性弹性假设之上并仅限于低频范围。