Diving bell and Diving chamber

Diving bell noun - Diving apparatus for underwater work; has an open bottom and is supplied with compressed air.

Diving chamber and diving bell are semantically related. in one-person diving apparatus topic. In some cases you can use "Diving chamber" instead a noun phrase "Diving bell".

Diving bell and diving chamber are semantically related. Sometimes you can replace phrase "Diving bell" with "Diving chamber", this phrases are similar.