Medium Frequency

Meter Factor

Medical First Aid Guide

Magnuson Fishery Conservation and Management Act

Most Favored Nation.

Most Favored Nation

Marine Guidance Note

Marine Gas Oil

Marine Index Bureau.

A pyrheliometer of the bimetallic type used to measure the intensity of direct solar radiation.

That portion of the record of a microbarograph between any two (or a specified small number) of successive crossings of the average pressure level (in the same direction). Analogous to microseism.

The record or trace made by a microbarograph.

An aneroid barograph designed to record atmospheric pressure variations of very small magnitude.

See biological corrosion.

A cargo movement in which the water carrier provides a through service between an inland point and the port of load/discharge. The carrier is responsible for cargo and costs from origin on to destination. Also known as IPI or Through Service.

The local climate of specific place or habitat, as influenced by landscape features.

A small groove scribed into the surface of a solar photovoltaic cell which is filled with metal for contacts.

One millionth of a meter (10-6 m).

Micrometer or one millionth of a meter; micron is sometimes represented in filtration by the Greek letter

A measurement applied to filters or filter media to indicate the particle size at which suspended solids above that size will be removed.