PDRE - What does PDRE stand for? The Free Dictionary
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 carried out a series of experimental studies on the indirect detonation starting of PDRE. Experimental results demonstrated that ignition delay and DDT starting time are not main factors that influence the improvement frequency of fuel oil and oxygen PDRE.
Results showed that studying preheating of fuel oil can shorten the detonation time and prolong the PDRE operation time significantly.
The conflict between the Government of the People's Democratic Republic of Ethiopia (PDRE) and the Eritrean People's Liberation Front (EPLF) offers an excellent example of the threefold INN approach.
The PDRE also had its own satellite dish, to facilitate direct radio communications with Addis Ababa.