Deep-sea submersible

Working staff untie a cable on China's manned submersible Jiaolong after its dive in Yap Trench, June 11, 2017. [Photo/Xinhua]

Jiaolong, a Chinese self-designed manned deep-sea research submersible able to dive to a depth of over 7,000 meters, has the greatest depth range of any manned research vehicle in the world. Jiaolong can work in 99.8 percent of the world's oceans and has big significance in China's deep water exploration.

Aircraft carriers

Launch ceremony of China's first home-built aircraft carrier 001A in Dalian, Liaoning Province, on Apr. 26, 2017. [Photo/WeChat]

From Liaoning, China's first aircraft carrier involving the refit of a former Soviet aircraft carrier Varyag, to a fully self-developed aircraft carrier of indigenous Chinese design, it has only taken five years. China has thus caught up with the world superpowers in building aircraft carriers and will construct more for national security.

LNG carrier

China's LNG Carrier Beihai. [Photo/Chinanews.com]

An LNG carrier is a specialized vessel designed for transporting liquefied natural gas (LNG). In order to facilitate the transport, natural gas is cooled down to approximately -163°C at atmospheric pressure, where the gas condenses into a liquid. The tanks on board an LNG carrier effectively function as giant thermoses to keep the liquid gas cold during storage. Such carrier ships are a crown jewel in the world shipbuilding industry; only China, the United States, Japan, South Korea and a few European countries managed to develop the technology so far.

Exploration of flammable ice

Photo taken on June 21, 2017 shows the trial mining site in the Shenhu area of the South China Sea. [Photo/Xinhua]

China completed trial exploration of flammable ice in the South China Sea, which extracted more than 300,000 cubic meters after a 60-day non-stop mining operation, exceeding previous expectations and setting world records in both the length and total amount of extraction. China began research in flammable ice in 1998, and found deposits in the South China Sea in 2007. A number of breakthroughs were made during the trial exploration, ranging from extraction methods to environmental protection. No environmental pollution or geological hazards occurred, which means there is a "China solution" for safe and green exploration of natural gas hydrate.