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Pu,symbol for the element plutoniumplutonium
, radioactive chemical element; symbol Pu; at. no. 94; mass no. of most stable isotope 244; m.p. 641°C;; b.p. 3,232°C;; sp. gr. 19.84 at 20°C;; valence +3, +4, +5, or +6.
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McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
PU(Physical Unit) In SNA, software responsible for managing the resources of a node, such as data links. A PU supports a connection to the host (SSCP) for gathering network management statistics.
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