The pressure is computed assuming an International standard sea-level pressure datum of 1013.25 hPa, and therefore is not necessarily the same as the aircraft's true altitude either above mean sea level or above ground level.he pressure is computed assuming an International standard sea-level pressure datum of 1013.25 hPa, and therefore is not necessarily the same as the aircraft's true altitude either above mean sea level or above ground level.
The term pleurisy (pleuritis) is inflammation or infection in the pleural space around the lungs. Pyothorax also known as empyema of the pleural cavity is the presence of pus in the pleural cavity between the layers of the pleural membrane Py/o-Pus.
Split and merge into it. Answer by Powerish. Confidence votes 15.2K. Pleurisy, or pleuritis, is inflammation of the lining of the lungs (the pleura) that leads to chest pain (usually sharp) when a breath is taken.plit and merge into it. Answer by Powerish. Confidence votes 15.2K. Pleurisy, or pleuritis, is inflammation of the lining of the lungs (the pleura) that leads to chest pain (usually sharp) when a breath is taken.