哑剧
发表于 2025-3-30 09:45:04
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Radiculopathy
发表于 2025-3-30 12:54:39
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agenda
发表于 2025-3-30 16:40:51
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G-spot
发表于 2025-3-31 00:09:14
About Learning to See and Think,nd a variant of this is:.where . = volume rate of flow.. = mean velocity, ./π...k is a constant dependent upon the viscosity of the fluid.(P.–P.) is the drop in pressure along a tube, length .... = length of tube... = internal diameter of tube... = internal radius of tube.. = viscosity of fluid.This
VALID
发表于 2025-3-31 01:54:52
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