floating dock

基本解释

The first episode of filming began with me falling off a floating dock and smashing my right humerus.
摄制工作就是以我从漂浮船坞上摔下并弄断肱骨开场的。
And there were stairs nearby, leading down to a small floating dock, where Kari, or someone she'd hired, could easily take the body out to sea to dispose of it.
此外附近有台阶，向下通到浮动船坞，那里Kari或者她雇的其他人能轻易地把尸体运到海里丢掉。
This paper makes description in detail on the constructional technology of a floating dock with box type, which is the first style in home, and it is of help for reference to the similar works.
本文对国内第一个浮箱式干船坞的施工工艺作了全面扼要的介绍，为今后施工类似该结构的工程提供一些参考经验。

Consider the floating dry dock.
CENTERFORSECURITYPOLICY: Center for Security Policy Memo to the President: Your Legacy Must Be to Restore America’s Military
They wanted to transfer it to Rosemont, where it would become a dry-dock casino floating in 2 feet of water, miles from the closest river.
FORBES: The Big Money Pit

a large boxlike structure that can be submerged to allow a vessel to enter it and then floated to raise the vessel out of the water for maintenance or repair (Also called floating dry dock)