WordNet
n. the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure" [syn: pressure, force per unit area]
Usage examples of "pressure level".
If he survived both of those--given air in a backpack, and a face mask fed with a mixture of gases that did not contain nitrogen, at some intermediate pressure level between Earth- and Mars-normal--he would still die.
When everyone was breathing and comfortable, the pilot was informed and began to bleed the air and pressure level inside the hull out into the night until both had equalized.
Without interference, he reassembled the airlock mechanisms, making sure that the door rolled smoothly in its track, that the seals fit to the proper tolerances, that the air-pressure level was correct.