(September 2014). A general sales agent (GSA) is a sales representative for an airline in a specific country or region. Typically, the GSA is responsible for selling all products of the airline in its region which includes flight tickets and cargo space. A GSA will typically sell the product of more than one airline.
Definition of standing wave. : a single-frequency mode of vibration of a body or physical system in which the amplitude varies from place to place, is constantly zero at fixed points, and has maxima at other points.
An Electron is Described as a Standing Wave[edit] Most of the waves that you're probably familiar with are known as traveling waves, because they travel or move. When you're sitting on your surfboard, trying to catch a good wave, you'll often look out to sea in the hopes of spotting a big one (Figure 6.3).