Submitted on: 29 December 2005.
Revised on: 16 April 2006.
Accepted on: 04 June 2006.
___________________Geodesy and Geodynamics---KEAI PUBLISHING LTD
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Submitted on: 24 May 2019.
Revised on: 04 August 2019.
Accepted on: 16 August 2019.
___________________Geodesy and Geodynamics---KEAI PUBLISHING LTD
http://reply.papertrans.cn/2/106/10549/10549-34.png
http://reply.papertrans.cn/2/106/10549/10549-35.png
Submitted on: 07 October 2014.
Revised on: 27 October 2014.
Accepted on: 17 November 2014.
___________________Geodesy and Geodynamics---KEAI PUBLISHING LTD