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DESIGNER'S OWN WORDS: We suggest the plan to use the hidden wind energy under the ground. It converts the wind energy generated when the subway train passes into electrical energy to be
used for electric power for several public facilities on the ground. Mega cities of countries well equipped with subways can meet the wind tunnel to maximize their value. The wind tunnels
installed in the mega cities can supply a lot of public electrical energy needed by mega cities. wind tunnel for mega city structure principle energy supply system sinhyung cho sep 04, 2010
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