Is there a way to do this is to bring beef half-kilogram dried on a winnowing basket,the oven, oven, solar energy and Solar Energy lens convex the invention by the glass and steel structure attached to the bottom of the aluminum, using a clear glass plate 1 attached to the top angle 45 degrees to the lightin the oven, in the middle of the basket สะแต, stainless steel sheets 2 and remove the disc and brick Mon spray black place astonishment at the light and vacuum to suck the heat from the thermal energy 2. Add 6 convex lens.
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