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Solving the vibration problems over the places passed through by the tunnel train. Some of the very difficulties confronting in the building of the China Expo building. The commentary talks about the construction of the Singjiang HSR. 5:07 5:09
Solving the vibration problems over the places passed through by the tunnel train. Some of the very difficulties confronting in the building of the China Expo building. The commentary talks about the construction of the Singjiang HSR. 5:07 5:09