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diaphragm in the good old telephones
Barbara P9
Barbara P9 May 07, 2013
diaphragm in the good old telephones

I've seen these sensors...

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Similar Photos: plant sensor http://faculty.desig<wbr/><span class="wbr"></span>n.umn.edu/dunne/curr<wbr/><span class="wbr"></span>ent_projects/garment<wbr/><span class="wbr"></span>_integrated_sensing.<wbr/><span class="wbr"></span>html iParking is used in Malls. It shows with green led lights the free places and with red if a car is there. Shows free places on big screen.

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