1993 was publicly released in May with the approval of the State Press and Publication Administration. The domestic unified publication number is CN 1 1-3303/G4, and the international standard publication number is ISSN 1005-8427.
1994 1 approved by the competent department of menstrual press and publication, it was changed from quarterly to bimonthly.
From June, 5438 to October, 2000, approved by the press and publication department, it was changed from bimonthly to monthly.
In 2002, it was rated as a "double-effect periodical" by the State Press and Publication Administration.
From July 2003, with the approval of the competent department of press and publication, it was changed from monthly to semi-monthly.
On June 5438+ 10, 2008, with the approval of the competent department of press and publication, it was changed from semi-monthly to monthly.