دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a body of air that remains for an extended period of time over a large land or sea area with uniform heating and cooling properties. The air mass will acquire characteristics (such as temperature and moisture content) of the underlying region.

n: an area over which an air mass rests and develops temperature and moisture characteristics typical of that location.

n: the leading edge of a cold air mass that replaces warmer air. The warm air is lifted to ride up over the cool air.

n: an interface between two air masses.

n: a discontinuity or zone between two adjacent air masses that is not moving or is moving only a little.