Helicopters specially designed for extinguishing fire in highland are seen in a drill in Daqing, northeast China's Heilongjiang Province, July 16, 2015. The armed police forest troops here were equipped with four Zhi-8AWJS helicopters, which has four tons of maximum amount of water spraying and is able to fly 1050 kilometers of voyage. The helicopters are expected to play a role in putting out fire and rescue in the forest area in Daqing. (Photo: Xinhua/Han Xinghua)
