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Asked by Ms.cherie from usa | Sep. 21, 2009 10:44
About:Hecang Fortress in Dunhuang

what different mechanisms used when building the great wall ??
help anyone????

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Answered by Ms.Anna | Sep. 21, 2009 20:20
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The workers used crowbars, rolling logs and winding gears to carry the building materials to the mountains when built the Wall.
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