Introduction: Ma keʻano he mea hoʻokele no nā mea mechanical likeʻole e like me nā mea pā, nā pumps, nā mea hoʻopili, nā mīkini mīkini, a me nā kāʻei conveyor,ʻo ka moto he mea hoʻohana nui i ka ikehu me ka nui o nā noi a me nāʻano likeʻole. ʻOi aku ma mua o 60% o ka hoʻohana mana. ...
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