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Perimeter Defense Network
mil., abbr.
PDN
Perimeter:
96 phrases
in 20 subjects
Agriculture
4
Aviation
2
Chemistry
1
Communications
1
Construction
5
Earth sciences
1
Energy industry
2
Environment
1
Forestry
5
General
8
High energy physics
3
Industry
1
Information technology
5
Law
1
Medical
5
Medical appliances
35
Microsoft
2
Municipal planning
2
Technology
6
Transport
6
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