ʻO ka paipu Geological he paipu kila i wili ʻia e ke kumu i loko o ka ʻoihana geological. He hakahaka kona ʻāpana keʻa, a aia nā ʻāpana wili honua lōʻihi i pili i ka paipu kila. ʻO nā paipu Geological me ka ʻāpana hollow cross-section, ka nui o nā paipu, i hoʻohana ʻia no ka lawe ʻana i nā wai, e like me ka aila, ke kinoea maoli, ...
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