| http://www.w3.org/ns/prov#value | - The hollow conduit tube upper portion open distal end 14AA, of the hollow conduit tube upper portion 14A of the at least one on conduit tube 14, and the hollow conduit tube lower portion open proximal end 14BA of the hollow conduit tube lower potion 14B of the at least one hollow conduit tube 14 are of such geometry so as to maximize the effects of and the amount of low pressure generated by the a
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