Depressurise

It put test subjects in a metabolic chamber (the kind divers use to depressurise) and had them drink three Envigas and eat a set diet during a 24-hour period. ❋ Unknown (2006)

Free gas recovery would depressurise the reservoir, leading to hydrate melting at the hydrate - free gas interface and thus to free gas replenishment. ❋ Unknown (2000)

He must check the suit, depressurise the capsule, and open the hatch - which, luckily, was almost full-length. ❋ Clarke, Arthur C. (1979)

A passenger on a charter flight in northern Canada forced open the aircraft's door and leapt to his death, making the freezing cabin depressurise at 23,000 feet. ❋ Unknown (2009)

Oxygen masks did not drop, and the plane did not depressurise, the report says. ❋ Unknown (2009)

According to Chinese press reports, more than 30 technologies will be tested during the mission, including a Chinese made airlock which will depressurise an orbital module ahead of the walk and repressurise it after it is over. ❋ Unknown (2008)

He added: "Once a fault like this happens you have to depressurise the reactor, which takes about a week.