Abbrev for reliability and maintainability, US.
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An expanded A-display in which an echo can be magnified by an expanded sweep for close examination.
Organism which assigns much of its resources to reproduction; usually opportunistic and colonizing species weeds with high fecundity and low competitive ability. Cf K-strategist.
Apparatus for checking the internal diameter of pipes etc to ensure that tools can pass. Also pig. See go- devil