ice dimensions English offensive zone English English half-boards goal crease http://en.wikipedia.org/wiki/Ice_hockey_rink half-boards English English English Ice hockey rink English 94 feet x 50 feet English English English half-boards English crease ice hockey rink goal crease red-Line Ice hockey rink 冰球場 English English English en:Ice hockey rink English http://en.wikipedia.org/wiki/Ice_hockey_rink offensive zone English