Using the latter, with the correlativity of soil 'density and the velocity of the Rayleigh surface wave, we can obtain the compaction of the subgrade.
后者则是用已得到的各层瑞雷波速度值，利用土密度与瑞雷波速的相关关系计算各层的压实度。
2
There exists a multi linearship between the stem sap flow velocity and the soil moisture, soil water potential.
油松树干液流速率与土壤容积含水量和土壤水势呈明显线性相关关系。
3
The influence of disc dimension parameters, velocity, soil properties, tool surface properties on the disc coulter force were analysed by comparison with the experimental results.