What does Dragon mean?

Answer 1

Jiaolong was China's first deep-sea manned submarine that was self-designed and independently integrated. It was of great significance in many aspects.

From a technical perspective, it represented a major breakthrough in China's deep-sea technology. In terms of overcoming the huge water pressure on the seabed, it used a 70mm thick titanium alloy shell and three pure glass observation windows on the structure, demonstrating that China's welding technology and overall industrial manufacturing level reached the forefront of the world. In terms of the control of the submarine's ups and downs, the design of the ballasting iron on the Dragon was exquisite. By reasonably throwing away the ballasting iron, the submarine's sinking, sailing, and rising were controlled, which tested and demonstrated the superb technology of China engineers in ballasting iron equivalent design. In terms of communication, although electromagnetic waves were severely weakened underwater and sound transmission was affected by seawater density and temperature, the domestic audio system on the Dragon could accurately send and identify signals and explore the surrounding fine terrain. Its domestic ultra-short baseline positioning system could provide underwater positioning and navigation services, and a series of equipment could broadcast the exploration process, solving the communication problem. At the same time, Dragon's life support system was also relatively powerful. There were two sets of oxygen supply systems inside, which could guarantee the safety of three people for 84 hours.

From the perspective of ocean exploration and research, Dragon built a stable and reliable platform for scientists to explore and study the deep sea. It had many abilities to explore the ocean, such as seabed operations and positioning systems. It could move freely in the sea area that occupied 99.8% of the world's ocean area. It could go deep into the seabed to carry out research, which provided the possibility of understanding the unique ecosystem and environment of the deep sea and collecting deep-sea creatures, seawater and deposits.

In terms of national development strategy, the development of Jiaolong promoted the development of China's deep-sea transportation technology, provided important high-tech equipment for China's ocean international seabed resource survey and scientific research, and also developed common technologies for China's deep-sea exploration and seabed operations. Its successful development made China the fifth country after the United States, France, Russia and Japan to master the technology of deep manned diving, marking that China had entered a new era of manned diving.

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