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The oil platform of Shengli Oil Field,Shangdong Province,China
OIP05053_144-0082

The oil platform of Shengli Oil Field,Shangdong Pr...

The oil platform of Shengli Oil Field,Shangdong Province,China
OIP05053_144-0083

The oil platform of Shengli Oil Field,Shangdong Pr...

The construction site of the Three Gorges Dam,China
OIP05054_35-0038

The construction site of the Three Gorges Dam,Chin...

APXiaolangdi Multipurpose Dam Project on Yellow River,China
OIP05056_88-0012

APXiaolangdi Multipurpose Dam Project on Yellow Ri...