puhipuhi kō whatu rangi
Ko te pū kōwhaiwhai whenua he whakamārama i te tūranga matatika o te hanganga āhuarangi i ngā whare rara me ngā tūranga hanga. Ko tēnei take nui rawa, ka whakamahi i te hā whenua hei whakamaru i te kaha whakapiri mō te whakawhiti me te kōwhaiwhai i ngā mata whenua nui. Ka hangaia e te pū kōwhaiwhai whenua i te mīhini pneumatic, ka whakawhiti i te kaha hā whenua ki te āhua meka, ko te mahi nei he whakangungu i ngā kiriata whakapiri e āhei ana ki te whakawhiti pai i ngā whenua. Ko ngā whatunga matua o te kōwhaiwhai: te mota hā, te mīhini whiringa, te rangahau kōwhaiwhai, me te kōwhaiwhai steel, ka mahi ngātahi hei whai i te paerewa pai o te kōwhaiwhai. Ko ngā pūtake hou o ngā pū kōwhaiwhai whenua i āhei ai ki ngā whiu kōwhaiwhai e taea ana te whakarerekē, ko ngā hanga ā-tinana hei pai ake i te wā moe o te kaihanga, me ngā rākau whakamutu kiko hei tūponotia i te mahi. E ai ki ngā whakamahi nui o enei kōwhaiwhai i roto i ngā mahi rara, ngā poraka whenua, ngā kaupapa hanga, me te whakamahi rua. Ka whiwhi pai ēnei kōwhaiwhai i ngā wāhanga upoko me ngā wāhanga raro, ka tuku mai i te whaiwai i waenganui i ngā āhuatanga mahi rerekē. Ka tū tonu te whakatū i te kōwhaiwhai i te whakapae pai i ngā taiao whakamātau, ahakoa te āhua meka rereke ka whakaae i te whakahaere me te whakahoki. Ka tīmata te whakatatū i ngā rahi tapawhā o ngā kōwhaiwhai me ngā āhua kia tirohia ngā hiahia kōwhaiwhai ā-wāhanga, ka whakanuia ki ngā āhuatanga rerekē o ngā whenua me ngā tohu hanga. I te whakauru i te hunga whakaiti kōrero me ngā rākau whakamutu wheoro, ka whakapai pai noa iho i te haumaru me te wā moe o te kaihanga, ka whakautu i ngā pātai matua o mua i te mahi pneumatic.
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