O le pa puipui lolovaia otometi hydrodynamic e aofia ai vaega e tolu: faavaa eleele, laulau feliuliua'i ma itu puipui puipui vaega, lea e mafai ona vave faapipii i le faitotoa ma le ulufafo o fale lalo. O modules lata ane o loʻo faʻafesoʻotaʻi faʻapipiʻi, ma faʻapipiʻi paʻu paʻu i itu uma e lua e faʻamaufaʻailogaina lelei ma faʻafesoʻotaʻi le laulau lolovaia ma le puipui.
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