1. 
   TWT
   acronym: Traveling Wave Tube
   Found op http://cdiac.ornl.gov/pns/acronyms.html#T
   
   
2. 
   TWT
   Traveling Wave Tube, downlink power amplifier in a spacecraft telecommunications subsystem, the final stage of amplification for downlink (same unit as TWTA).
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   TWT
   Travelling-Wave Tube
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   TWT
   Travelling Wave Tube
   Found op http://www.tornado-data.com/siteinfo/glossary.htm
   
   
5. 
   TWT
   Travelling Wave Tube
   Found op http://www.e2v.com/assets/media/files/documents/imaging-space-and-scientifi
   
   
6. 
   TWT
   travelling-wave tube
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
7. 
   TWT
   Travelling Wave Tube. TWT's are the final amplifiers for the stochastic cooling kickers. The Debuncher tubes can be found in the tunnel above the Debuncher kicker tanks. Accumulator TWT's are enclosed in racks in AP30 adjacent to the TWT power supplies. - Pbar Rookiebook
   Found op http://www-bdnew.fnal.gov/operations/accgloss/gloss.html#A
   
   
8. 
   twt
   1) Traveling wave tube
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/twt/1
   
   

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