Group 1 - The event "Building a Snow Aircraft Carrier" at Harbin Engineering University involved over 1,200 students and faculty creating a giant snow map of the "Fujian" aircraft carrier and three carrier-based aircraft models [2][3] - This activity has been held for seven consecutive years, integrating labor education, professional practice, and patriotic education [2] - The design process for the snow map began in September 2025, going through over 60 iterations, and achieved a breakthrough in visual representation and engineering practice with more than 1,300 feature points [2] Group 2 - The project utilized Beidou satellite positioning technology to ensure centimeter-level accuracy in placing over 1,300 feature points on the military playground [3] - Participation in the event has grown from 100 people in 2018 to over 1,200, with involvement from all colleges at the university [3] - The initiative serves as a direct method for national defense education, promoting the concept of a maritime power and inheriting the spirit of Harbin Engineering University [3]