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Trucks park for being loaded with cargoes at a troop's warehouse of an army service station on the Qinghai-Tibet Highway, southwest China's Tibet Autonomous Region, Sept. 25, 2014. The transportation regiments of the Qinghai-Tibet Corps of the Chinese People's Liberation Army (PLA) has been undertaking cargo transportation for PLA troops in Tibet region since 1954. For 60 years, they conveyed more than 800 metric tons of materials, accomplishing about 80 percent of troop transportation task in the Qinghai-Tibet Plateau. (Xinhua/Wang Song)