Submitted on: 30 June 2013.
Revised on: 25 July 2013.
Accepted on: 18 August 2013.
Micromachines
http://reply.papertrans.cn/3/220/21943/21943-32.png
http://reply.papertrans.cn/3/220/21943/21943-33.png
Submitted on: 15 November 2014.
Revised on: 05 December 2014.
Accepted on: 29 December 2014.
Micromachines
http://reply.papertrans.cn/3/220/21943/21943-35.png
Submitted on: 16 March 1998.
Revised on: 12 April 1998.
Accepted on: 27 April 1998.
Micromachines