Truly marvelous! China's high-tech achievements in past five years

China's manned submersible Jiaolong conducts its final dive of China's 38th oceanic expedition in the Yap Trench in the Pacific Ocean on June 13, 2017. Named after a mythical dragon, Jiaolong has a maximum load capacity of 240 kilograms and a maximum velocity of 25 nautical miles per hour. Jiaolong reached its deepest point of 7,062 meters in the Mariana Trench, the world's deepest known trench, in June 2012. [Photo: Xinhua]