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　I saw both from a long distance. Both can be basically seen. Weii,Please more from a distance.Then,ｄigital disappears previously.
   
 
　 I looked it up from the outside. It is quite the same content as procedure 1.
       
 


　I indoors saw it in the short distance. It is quite the same content as procedure 1.It is easy to see a digital clock. It understood from the experiment. It is easy to see Analog clock than Disital clock. There are a lot of analog clocks in the public domain for these reasons.