A ship which is moored or grounded in a channel in order to block it, for purposes of war or to provide shelter.
（用于战争目的或提供庇护的）海上通道阻塞船，海上通道封锁用船
Example sentencesExamples
There was little choice about the type of ships to use as blockships.
Nasser had sunk blockships in the canal and it did not reopen until March 1957, under UN control.
Suitably buoyed up by our first dive, the team spent the afternoon exploring one of the famous blockships dotted around the ring of islands that make up Scapa Flow.
Most divers who have been to Scapa Flow will have dived blockships in Burra Sound.
The Tabarka is a blockship in Burra Sound, lying in around 12m of fiercely tidal water.