Xiangyanghong-9 ship which carries China's manned submersible Jiaolong arrives in Qingdao, east China's Shandong Province, July 16, 2012. China's manned submersible Jiaolong has successfully completed its program of deep sea dives, with a sixth and final dive to 7,000 meters in the Mariana Trench in the Pacific Ocean on June 30.