Alongside the dike, the flow velocity gets larger, and it is on the contrary in the dike field.
鱼骨坝束窄了河道过水断面，引起坝体两侧水流流速的增大，坝田内流速则大幅度减小；
The farmers dug a deep dike to carry water to the rice field.
农民们挖了一条深沟把水引到稻田里。
For any n-layer vertical dike set with contrasts of electric resistivity, a set of equations of coefficients are derived for calculating the electricpotential in the point source field.
对于任意多层不同电阻率垂直岩层，导出了求解点源场电位的系数方程组。
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