Only their special space clothing would provide the air pressure they needed to stay alive.

VOA: special.2009.06.24

It's going to take place in there. It's going to be a constant pressure, it might be open to the air, or even if it isn't, there might be plenty of room, and it's a liquid anyway, so the pressure isn't going to change significantly.

也许它是液体，它在这个位置,这是恒压的，它也许是连通大气的，就算不是，它也有，足够的空间，而它是液体,压强不会显著地改变。

麻省理工公开课 - 热力学与动力学课程节选

The air pressure in a plane during flight is lower than at sea level.

VOA: special.2009.07.14

The astronauts had removed all air pressure from the spacecraft.

VOA: special.2009.06.24

NOAA scientists say Katrina's air pressure was very low.

VOA: special.2010.08.24

The second is the low barometric air pressure.

VOA: special.2010.06.30

All this wet air is pulled in by a high pressure area over the Indian Ocean and a low pressure area to the south.

VOA: special.2010.05.25

Bigger livestock herds are putting greater pressure on land resources and disrupting some ecosystems and the animals generate significant amounts of water and air pollution, including methane, a climate-changing greenhouse gas.

VOA: standard.2010.02.22