Ko te mana whakahaere motuka Dc e whakamahia ana, ka puta i etahi wa kaore e taea te tiimata, koinei te take? Kei raro iho he hanga iti mo to whakautu. Te ngaronga o te hiko: karekau pea he whakakao hiko, i mua i te whakakotahitanga o te ngongo, te ngoikore o te taputapu mana whakahaere hiko, me era atu, aha atu. A mo te maimoatanga o enei tikanga ko te hiahia ki te fuse taumata timata ki te kotahi i runga i te wa, tirohia te pūmana nekeneke nga wahi katoa o te ara iahiko matua me te whakahaere iahiko conductors me ngā pūrere, a ka kitea i roto i te take me te whakatika. He koretake te motuka motuka: he nui te kakahu o te paraihe, ka mau, kaore e ranea te pehanga o te puna, me era atu, aha atu. Mo te maimoatanga o enei ahuatanga ko te whakamahi i te mita maha hei tirotiro, katahi ka kimihia te waahi pakaru hei whakatika. Kei runga ake ko te take kaore e taea e te kaiwhakahaere motuka dc te tiimata, me te whakahaere.
Ko te roopu HOPRIO he kaihanga ngaio o te kaiwhakahaere me nga motuka, i whakapumautia i te 2000. Te tari matua o te roopu i Changzhou City, Jiangsu Province.