drainage ditch

基本解釋

And spent their afternoons trying to catch tadpoles in the neighborhood drainage ditch that they could grow into frogs.
在家附近的溝渠中，兩人一起捕捉蝌蚪，看著蝌蚪長(zhǎng)成青蛙。
Results show that the simulated drainage volume from the field ditch is extremely close to the observed value, and the relative error of annual drainage volume is only 0.4%;
結(jié)果表明：模擬的農(nóng)溝排水量與試驗(yàn)觀測(cè)值極為接近，年平均排水量誤差僅為0.4%；
Every schoolchild here learns the legend of “the great Yu, ” whose prodigious feats of canal building and drainage ditch digging 4, 000 years ago put an end to killer floods on the Yellow River.
這里的每一個(gè)學(xué)齡兒童都知道大禹的傳說，他的偉大功績(jī)?cè)谟?000年前修筑了河渠和排水溝，終止了當(dāng)時(shí)黃河洪水的泛濫。

He was headed for the drainage ditch on the other side of the dike.
NEWYORKER: Youth in Revolt
The boy and other family members had sought shelter in a drainage ditch.
NPR: Cleanup Goes On As Storms Move Toward East Coast
Even the storied Rio Grande, which she and Brian had seen on a disagreeable weekend trip several years ago to Matamoros, was hardly more than a drainage ditch.
NPR: In 'Challenger Park,' Mom Is an Astronaut

排水溝
Domestic sewage discharged Shi Bao town has the characteristics of high nitrogen, medium phosphorus and low organic matter concentration with the low carbon nitrogen ratio. (2)Enhanced ditch is a purification trentment facility using drainage ditch to treat sawage.
強(qiáng)化溝渠是一種通過合理改造排水溝渠處理污水的凈化處理設(shè)施。