drop pit 溜道 ; 落轮坑 ; 修车坑 ; 跌水坑
erosion caused by drop pit 跌窝侵蚀
The Pit-Drop Syndicate 弗里曼·威尔斯·科洛夫茨
The road vehicle is a city built drop pit pit in front of the door, often do not pay attention to the driver to drive the car stuck.
路面大坑车辆掉落市建行门前有一大坑，经常有司机开车不注意将车陷进去。
It is a very important point of the appearance of flow drop pit during the process of rill erosion.
细沟侵蚀过程中水流跌坑的出现是极其重要的一环。
The system consists of a swirling chamber, two vertical buckets on its wall, a drop shaft and a water cushion pit with one blind tunnel.
本文通过模型试验研究涡室-竖井内消能系统，用内设阻涡坎的涡室连接泄洪洞和竖井，带盲洞的消力井连接竖井和导流洞。
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