并且绘制了全国2%频率水泥混凝土路面最大温度梯度等值线图。
Moreover the isogram chart of countrywide maximum temperature gradient of concrete pavements with frequency of 2% is plotted.
频率曲线众数峰含量随深度的变化，不但指示了化学风化趋势，而且反映了风化程度的变化梯度。
The variation of frequency curve's mode peak content with the increasing of depth, shows not only the trend of chemical weathering but also variation gradient of weathering extent.
文中详细研究了梯度高分子溶液在不同频率下，聚合物厚度及梯度结构的变化对反射声衰减效果的影响。
The effects on the underwater sound attenuation by the thickness and concentration gradient of polymers were measured in a sound tube at different frequency during the polymers dissolution process.
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