From your link, probably it's for military use first
"Tianyue series computers have their own unique advantages.
Tianyue series computers are highly reliable, long-endurance, resistant to heat and humidity, shock resistance, and other outstanding performance, and can adapt to highlands, islands, and other areas. It can meet the needs of data acquisition, image processing, command and control, communication, and positioning in harsh environments such as desert, jungle, etc. It has already been implemented in Heilongjiang (high cold), Hainan (high humidity), Tibet (high altitude), and other areas with unstable power supply.
At present, it has been realized in Heilongjiang (high cold), Hainan (high humidity), Tibet (high altitude), and other areas with an unstable power supply of tens of thousands of people. The deployment and application of China-made computers are able to withstand the harsh environment."