http://reply.papertrans.cn/1/54/5318/5318-21.png
Submitted on: 08 May 1999.
Revised on: 18 June 1999.
Accepted on: 17 July 1999.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
http://reply.papertrans.cn/1/54/5318/5318-23.png
http://reply.papertrans.cn/1/54/5318/5318-24.png
Submitted on: 18 May 2018.
Revised on: 16 August 2018.
Accepted on: 28 August 2018.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 31 July 2012.
Revised on: 02 September 2012.
Accepted on: 29 October 2012.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 28 November 2003.
Revised on: 30 January 2004.
Accepted on: 22 March 2004.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
Submitted on: 01 August 2023.
Revised on: 21 November 2023.
Accepted on: 03 January 2024.
___________________CHINESE JOURNAL OF PHYSICS---ELSEVIER
http://reply.papertrans.cn/1/54/5318/5318-29.png
http://reply.papertrans.cn/1/54/5318/5318-30.png