I kēia manawa, ʻo ke ʻano o ka ʻoki ʻana i ka ʻōpala a me ka mīkini hoʻihoʻi i ka hui pū ʻana o ka hahau ʻana a me ka ʻoki ʻana, a ʻo ka hahau ʻana ke ʻano nui [0.ʻO nā pahi i hoʻohana pinepine ʻia mai 6 ~ Hana ʻia i ka pā kila 7mm 65Mn, ʻo ka wikiwiki o ka hoʻololi ʻana o ka ʻoki ʻoki ma ke ʻano he 500r / min hema a ʻākau a i ʻole ke kiʻekiʻe, ʻoi aku ka haʻahaʻa o ka wikiwiki e hoʻopilikia i ka maikaʻi o ka hana.
ʻO ke kila 65Mn ka paʻakikī kiʻekiʻe a me ke kūpaʻa maikaʻi loa.akā, no ka mea, pili pololei ka mea hana me ka lepo a me ke one i ka wā o ka hana, ma muli o ke kaumaha o ka hana i ka hopena nui a me ka friction o ka lepo e hōʻeha nui ai, e hoʻopōkole loa ʻia ka manaʻolana o ke ola.ʻO ka hana ʻokiʻoki o ka mīkini hoʻihoʻi ʻana i ka ʻōpala palaoa maʻamau, ʻo ka wahi mahiʻai ma kahi o 70hm wale nō ", a me nā mea ʻoki o ka mīkini hoʻihoʻi ʻana i ka ʻōpala kulina, ʻo ka wahi hana ma kahi o 40hm wale nō.
He mea paʻakikī ke hōʻoia i ka maikaʻi o ka ʻoki ʻana a hoʻonui i ka hoʻohana mana inā hoʻololi ʻia i ka manawa kūpono.I kēia manawa, hoʻohana nā mīkini hoʻihoʻi mauʻu ma luna o ka ʻāina i nā maʻa maʻa kiʻekiʻe.ʻO ka pahi (ka hapa nui o ka ʻoki ʻana i ka L-like) ʻoki i ka ʻōpala i hope, a paʻa mau ka ʻōpala i ka pā uhi, a ʻoki ʻia a haki ʻia i nā manawa he nui, aia nā ʻōpala i haʻihaʻi ma ka ʻaoʻao o luna o ka huila pahi.ʻO nā mīkini no ka ʻohi ʻōpala ma lalo o ka honua, e like me ka wehe ʻana i ka ʻōpala, nā mea mīkini e like me ka wehe ʻana i ka ʻōpala haʻalulu, ka wehe ʻana i ka ʻōpala lālani, a me ka wehe ʻana i ka ʻōpala hui pū kekahi ma hope o kekahi.hoopukaia a hoohanaia.ʻO ka noiʻi ʻana i nā pahi i hele mai mai ka rotary tiller, ʻoki i ke kaʻina hana hoʻomohala o nā pahi, nā ʻoki ʻōpala pololei i nā ʻoki ʻōpala curved a me nā pahi ʻōpala, hoʻomaikaʻi mau ʻia ka hana ʻoki ʻana o ka pahi, a ʻike maopopo ʻia ka emi ʻana o ke kūʻē a me ka hoʻohana ʻana i ka mana.Ma waena o lākou, hoʻohana ka mea ʻoki ʻōpala pololei i ke ʻano ʻokiʻoki no ka ʻoki ʻana a hoʻohui ʻia e ka ʻoki ʻoki ʻana.ʻO ke ʻano o ka ʻoki ʻana, aia ka ʻoki ʻoki ʻana i ke kaʻina ʻoki, no laila e hoʻololi ke kihi o ka ʻoki ʻoki ʻana i kūpono i ka ʻoki paʻa.Ma muli o ka hana maʻalahi o nā pahi ʻoi pololei, mai a hoʻohana nui ʻia.
2.1 Ka ʻōpala kumu kumu
E like me ke ʻano, ʻo nā pahi ka nui o nā pahi pololei, L-like a me nā pahi i hoʻololi ʻia.Nā pahi holomua, nā pahi ʻano T, nā maiuu hāmare a me nā ʻano ʻē aʻe.I waena o lākou, ke ʻano L a me kāna hoʻololi ʻia ʻO ka pahi hānai e hoʻohana nui ʻia no ka kulina, sorghum, pulupulu a me nā mea kanu ʻē aʻe.ʻO ka ʻokiʻoki ʻana i nā ʻōpala i hoʻokumu ʻia ma ka ʻoki ʻoki ʻana, a ʻo ka ʻoki ʻana no ka paving.ʻAʻole koi ʻia ka ʻoi.