At the turn of the century, the world is at the juncture of the transition to the new world power structure.
世纪之交，世界正处于向新格局转变的关键时期。
Important changes have happened in the power structure of international system after Cold War, which inevitably leads to the change of world order.
冷战后国际体系的权力结构发生了重大变革，这就必然导致世界秩序的变革。
A series of power system blackouts all over the world are mostly related to the reasonlessnetwork structure, for the power system's stability is destroyed by casual faults.
国内外一系列大停电事故大多数都与电网结构不合理而导致偶发事故下系统的稳定性遭到破坏有关。
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