The transformation and upgrading of NGEs have never halted since their emergence, and have experience three stages.Especially after the breakout of international crises in 2008, while facing the double pressure of rising cost and shrinking market, and hugging the great opportunities of a fresh round of scientific and technologic revolution, the transformation and upgrading of NGEs have accelerated.It is of great importance for promoting the transformation and upgrading of NGEs to retrospect its historical process and evolution path and analyze the obstacles and the related reasons.
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