现在卫星和火箭越来越多，产生的残骸也随之增加，太空垃圾成了不可避免的因素。
I am trying to get this in MATLAB, however I am not successful ! Any MATLAB gurus out there ? alt text http://www.freeimagehosting.net/u开发者_如何转开发ploads/94020b921d.gif
加载中,请稍侯......