A platform, as of planking, at the entrance to a dock.
船坞入口的平台，如放木材之用。
2
The paper describes the major techniques adopted for construction and removal of a cofferdam erected at the entrance of the dock.
本文论述了船坞堵口围堰的施工及拆除的主要施工工艺。
3
There exists universally reflow in the entrance of excavated dock, which is similar to approach channel of low head hydro-junction located in alluvial river.