http://dr5.lamost.org/v3/sas/fits/20141113/GAC052N35B2/spec-56975-GAC052N35B2_sp07-063.fits.gz
http://dr5.lamost.org/v3/sas/fits/20141113/GAC052N35B2/spec-56975-GAC052N35B2_sp07-063.fits.gz
http://dr5.lamost.org/v3/sas/fits/20141113/GAC052N35B2/spec-56975-GAC052N35B2_sp07-063.fits.gz