What do you mean by double first class?

"Double first-class" is the abbreviation of world-class university and first-class discipline construction. On September 2, 2065438, the Ministry of Education, the Ministry of Finance and the National Development and Reform Commission jointly issued the Notice on Publishing the List of World-class Universities and First-class Discipline Construction Universities and Discipline Construction, officially confirming the publication of the list of world-class universities and first-class discipline construction universities and disciplines. The first batch of 137 double-class construction universities, including 42 world-class universities (36 in Class A) and 465 double-class construction disciplines (including 44 self-defined disciplines).