Archaeologists discovered hidden burial chambers beneath the ancient pyramid.

Researchers observed several chambered nautili navigating the reef at dusk.

Technicians inspected the plenum chambers for leaks before restarting the ventilation system.

The explorers hesitated before entering the ancient burial chamber, unsure what they might disturb.

Historians of chemistry often study lead chamber processes to understand early industrial sulfuric acid production.

Historically, the lead chamber process was widely used to produce sulphuric acid before the contact process became dominant.

After the diver returned from a long free dive, doctors recommended a session in the hyperbaric oxygen chamber to treat suspected decompression sickness.

Local hospitals invested in new hyperbaric oxygen chambers to treat divers suffering from decompression sickness.