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Stephen Collier
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Stephen Collier kommenterede
I'm not exactly sure what the described situation is (is there a coating on the surface of the foam board being increased/decreased, or maybe the idea is that different foam materials can be used w...
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Stephen Collier kommenterede
You'll need to know sound physics and maybe electromagnetic physics for general knowledge about sound waves, energy, power, decibels, and more. You'll also need to know specifics about the types an...
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