REFEREE'S REPORT (by email) CHINESE JOURNAL OF PHYSICS The Physical Society of Taiwan P.O. Box 23-30, Taipei, Taiwan 106, R.O.C. Tel: 886-2-2363-4923 Fax: 886-2-2362-6538 Email:cjp@psroc.phys.ntu.edu.tw Manuscript Reference Number: Title : Author(s): ----------------------------------------------------------------------- (A) Please check proper items: 1. Category: () letter () Review article () Regular article () Conference Paper 2. Quality of Research and Presentation: () Excellent () Good () Average () Marginal () Poor 3. Recommendation: () Publish without change. () Publish after authors have made some minor changes mentioned in the report below. () Substantial revisions are necessary. Return to me on resubmission. () Do not publish; see the report below. () Other; see the report below. 4. English: () as it is () with minor revisions () with major revisions ------------------------------------------------------------------------ (B) Report and/or Recommendations: