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Old 03-28-2012, 05:46 PM   #314 (permalink)
Cd
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By " cavity test " I was referring to a cavity used in tests such as this one :http://wwwm.coventry.ac.uk/researchn...e%20Plates.pdf

Note the open end which is hollow.

I found the study on slotted cavities interesting as well.

( And yes, with a name like "anal probe" i can see the humor in a "cavity" test )
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