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ʻO nā hana Tunneling Paʻa Paʻa hilinaʻi

Hana ʻia mai nā papa kila kiʻekiʻe, ua hana ʻia kēia lima tunnel e kū i nā kūlana paʻakikī a hōʻoia i ka lōʻihi.ʻO ke ʻano o ka lima tunnel he ʻepekema a kūpono hoʻi, a hiki iā ia ke hana maikaʻi loa i loko o kahi ākea o ka tunnel, me ka hiki ʻole ke hoʻohālikelike a me ka maʻalahi.