Submitted on: 06 May 2003.
Revised on: 17 August 2003.
Accepted on: 04 October 2003.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 09 January 1998.
Revised on: 17 March 1998.
Accepted on: 25 April 1998.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 18 March 2023.
Revised on: 29 April 2023.
Accepted on: 26 June 2023.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 14 June 2003.
Revised on: 26 August 2003.
Accepted on: 21 September 2003.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 03 September 2008.
Revised on: 21 November 2008.
Accepted on: 20 December 2008.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 04 April 2014.
Revised on: 07 May 2014.
Accepted on: 16 June 2014.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 22 August 2023.
Revised on: 08 December 2023.
Accepted on: 01 February 2024.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
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Submitted on: 14 March 2004.
Revised on: 16 June 2004.
Accepted on: 06 July 2004.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
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