1·African American's tenant's home beside the Mississippi River levee.
非洲裔美国人的租客家旁边的密西西比河大堤。
2·And now they are building a giant flood gate on the very pretty levee in front of our house!
而现在,他们正在建设一个巨大的防洪闸门,非常漂亮的大堤前我们的房子!
3·The adjusted levee around Eastern Tai Lake is formed of cohesive hydraulic fills, which include lots of pebble-shaped clods.
东太湖堤线调整大堤由黏性土水力吹填形成,填土中含大量鹅卵状土块。
4·The critical seepage gradients of the cut-off walls are obtained according to the experimental data. The formula for assessing the influence of piping on safety of levee is…
根据试验资料确定了悬挂式防渗墙及其前后水平段的渗流临界坡降,给出了管涌险情是否会影响大堤安全的估算公式。