Keywords: US Navy 110914-N-ZZ447-005 Machinist's Mate 1st Class Ryan Jacobsen, right, demonstrates proper maintenance procedures to Electrician's Mate Firema.jpg en GREAT LAKES Ill Sept 14 2011 Machinist's Mate 1st Class Ryan Jacobsen right demonstrates proper maintenance procedures to Electrician's Mate Fireman Recruit Matthew Webb in the valve and flange lab at the Center for Naval Engineering Great Lakes U S Navy photo by James F Antonucci/Released 2011-09-14 110914-N-ZZ447-005 Navy http //www navy mil/view_image asp id 107998 U S Navy photo by James F Antonucci PD-USGov-Military-Navy CNE Learning Site Great Lakes Goggles Vises |