E hoʻolauna I loko o kekahi ʻōnaehana hydraulic, ʻo ka mea nui ke kuleana no ka hana ʻana i ka mana, ʻo ia ka paila hydraulic. Ma waena o nā ʻano ʻano like ʻole i loaʻa, ua kaulana nui ʻia nā paila hydraulic ea ma muli o ko lākou mau hiʻohiʻona kūikawā a me nā pono. ʻO kēia mau kikoʻī ...
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