English to Turkish Science Nuclear Eng/Sci

BAĞLAM:
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The conditions to run the test were established prior to the day shift of 25 April 1986. The day shift workers had been instructed in advance and were familiar with the established procedures. A special team of electrical engineers was present to test the new voltage regulating system.[12] As planned, a gradual reduction in the output of the power unit was begun at 01:06 on 25 April, and the power level had reached 50% of its nominal 3200 MW thermal level by the beginning of the day shift. At this point, another regional power station unexpectedly went off line, and the Kiev electrical grid controller requested that the further reduction of Chernobyl's output be postponed, as power was needed to satisfy the peak evening demand. The Chernobyl plant director agreed and postponed the test.
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Kaynak: http://en.wikipedia.org/wiki/Chernobyl_disaster
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Soru: --electrical grid controller-- Türkçeye nasıl çevirirdiniz arkadaşlar? teşekkürler