Received:June 20, 1986  
Key Word:   
Fund ProjectL:
Author NameAffiliation
杨安洲 北京工业大学 
Hits: 1239
Download times: 759
Abstract:
      
Citation:
DOI:10.3770/j.issn:1000-341X.1987.01.027
View Full Text  View/Add Comment  Download reader