E rua ngā raupapa A me B i roto i te tau mekameka. Ko te raupapa A te rahi e rite ana ki te paerewa mekameka o Amerika: ko te raupapa B te rahi e rite ana ki te paerewa mekameka o Ūropi (te nuinga o te UK). Haunga te reo kotahi, he āhuatanga anō ō rātou i ētahi atu āhuatanga. Ko ngā rerekētanga matua ko:
1) He ōrite te matotoru o te pereti mekameka o roto me te pereti mekameka o waho o ngā hua raupapa A, ā, ka whiwhihia te pānga kaha ōrite o te kaha pumau mā roto i ngā whakarerekētanga rerekē. Ka whakarerekēhia te pereti mekameka o roto me te pereti mekameka o waho o ngā hua raupapa B kia ōrite, ā, ka whiwhihia te pānga kaha ōrite o te kaha pumau mā roto i ngā Baidu rerekē.
2) He ōwehenga motuhake ngā ine matua o ia wāhanga o te raupapa A ki te teitei. Pērā i: te whānui o te titi = (5/16) P, te whānui o te roera = (5/8) P, te matotoru o te pereti mekameka = (1/8) P (ko P te teitei o te mekameka), me ētahi atu. Heoi, kāore he ōwehenga mārama i waenga i te rahi matua me te teitei o ngā wāhanga raupapa B.
3) Te whakatairite i te uara kawenga pakaru o ngā mekameka o te taumata kotahi, engari ko te whakatakotoranga 12B o te raupapa B he iti iho i te raupapa A, ko te toenga o ngā whakatakotoranga he rite tonu ki ngā hua raupapa A o te taumata kotahi.
He ōrite te paerewa hua ki te paerewa o te ao ISO9606:1994, ā, ko ngā whakatakotoranga hua, te rahi me te uara kawenga kume e tino rite ana ki te paerewa o te ao.
Ngā Āhuatanga Hanganga: Ko te mekameka he mea tito mai i ngā pereti mekameka o roto, ngā roera me ngā ringaringa, he mea hono tahi ki ngā hononga mekameka o waho, he mea tito mai i ngā pereti mekameka o waho me ngā pou titi.
Mō te kōwhiringa hua, ka taea te tīpako i te whakatakotoranga mekameka e hiahiatia ana i runga i te pihi mana. Mena ka tīpakohia i runga i te tatau, me nui ake te tauwehenga haumaru i te 3.
Wā tuku: 28 o Ākuhata-2023