/worlds/south_korea/b/emerson-korea-blog/posts/m2m-quot-the-good-amp-bad-of-m2m-quotM2M의 장점과 단점 <v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"en-USTelligent Community 13