Lava is the extrusive equivalent of magma. Magma (from Greek Î¼Î¬Î³Î¼Î±, thick unguent) is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets. Besides molten rock, magma may also contain suspended crystals, dissolved gas and sometimes gas bubbles.
Mean opinion score. Mean opinion score (MOS) is a measure used in the domain of Quality of Experience and telecommunications engineering, representing overall quality of a stimulus or system. It is the arithmetic mean over all individual âvalues on a predefined scale that a subject assigns to his opinion of the performance of a system qualityâ.
Similar ratings are placed into various communities.. For example, ratings that are administrative in nature, are placed in the Administration Community. Ratings that deal with aircraft are placed in the Aviation Community. The Navy Ratings are what other services call Military Occupational Specialties (MOS). Here's an overview of the Navy job communities and some of the ratings contained within each.