Tianzhen No.1 Middle School is a key high school located on Dongbei Street in Tianzhen County, covering an area of 74000 square meters and a building area of over 28000 square meters. It is a 12 track single run high school with one teaching building, one multi-functional staircase classroom that can accommodate 320 people, and 18 multimedia classrooms.

In late November, Greelan Technology Development Co., Ltd. (hereinafter referred to as "Greelan Technology Company") reached a cooperation agreement with Tianzhen No.1 Middle School to establish two 64 seat cloud network classrooms. The cloud network classrooms of Shaanxi Greelan Technology Development Co., Ltd. have a truly user oriented design, powerful functions, easy operation, graphical software control interface, vivid, and intuitive. Each operation function is arranged by zone, and for each function key operation, there is a corresponding status icon prompt on the student position, and the status bar also has corresponding prompts. The artificial intelligence of each function button highlights the operable buttons, and the operation interface is instantly self monitored. The self-learning button allows students to be in a self-learning state, and teachers can monitor students' learning status through individual calls and monitoring functions. Other operation functions are silently canceled. Unified maintenance and management, and rapid deployment of the latest operating system and application software without affecting usage; Administrators can complete the configuration and maintenance of applications without having to contact the end user's client, greatly reducing maintenance workload and improving efficiency.

 Greelan engineers have completed installation and debugging in early December, quickly putting customers into use. Greelan Technology Company has always adhered to the concept of "positive, simple, happy, professional, honest, and win-win" to serve customers, and to give back to users with fast, efficient, and high-quality products, which has also made more and more domestic and foreign customers choose the "Greelan" brand.