whakamahi i te kō whatu whakaroto
Te whakamahi i te mātaitai ki runga i te pū (DTH) he tino rautaki whakaruruhau matihiko, e hīkina ana i ngā hanga whiu me te whakaheke i te wāhi tōmua hei whiwhi i te hiranga pai rawa i te whakapapa mai i ngā tahataha kōngiro. Ka whakamahi tēnei hanga i tētahi pū whiu pneumatic i waenganui i te pū whakawhiti, ka tukuna i ngā kaha nui ake ahakoa ka whakaheke noa te whenua katoa. Ka mahi te rākau mōhio i te wāhi o te pū whakawhiti, ka tuku i te hāwai whakareherehe ki runga i ngā pū whakawhiti hei whakatika i te mātaitai, ā, ka whakatupu haere i te korenga o ngā kereka i roto i te rua. Ka whakahewahewa anake te pisona o te pū ki runga i te pū whakawhiti, ka hangaia he mahi kawe kai pai rawa e kitea ana i te whakakore i ngā tahataha kōngiro e whaihua rawa ana. Kei te pai tēnei rautaki whakaruruhau i ngā tūranga e hiahia ana ki te hanga i ngā rua pai rawa me ngā ara torowhānui, e kitea ana i te kaihokohoko, te kaiwhakatakoto, te whakaruruhau wai-pū, me ngā kaupapa hanga. Ko te mauhere o tēnei hanga kei te tuwhera atu i te pū whakaruruhau ki uta i te mata o te kawe, e whai ana i te kaha maimoa me te itinga iho i te kaha kore. Nā ngā whakaruruhau DTH matihiko o nāianei ka hanga i ngā whakaaetanga matihiko nui, pērā i ngā taumata whiu e taea te whakarerekē, ngā horopaki pū e whai take ana mo ngā momo whenua rerekē, me ngā rākau whakahaere hāwai matihiko e whakapai ana i te mahi me te wehiwehi. Ko te whanonga tūponotia o tēnei rautaki ka whakaae i ngā hapa rua e whai ake ana i te toru tuatahi ki te waho i te 48 tuatahi, ka whakaae i ngā kaupapa rerekē mai i te whakaruruhau pū ki te mahi pū.