I-PPGI ye-PPGINgaba intsimbi yentsimbi edityaniswe ngentsimbi ye-suble yemveliso ehlekisayo, ngenxa yepropathi echasene nemozulu, ukumelana nemozulu kunye nembonakalo entle, isetyenziswe ngokubanzi ngokwakhiwa, amashishini asekhaya, amanye amashishini. Imbali yemibala yemibala ehlanganisiweyo ihamba ngenkulungwane yama-20 kwaye yayenzelwe ukusombulula ingxaki ye-colossion ye-pite yensimbi ye-galtani. Ngokukhula kwetekhnoloji ye-Galvanition, intsimbi ye-ivansed isetyenziswe ngokubanzi kwintengiso.
Ngo-1960s, umxholo weImibala edityanisiweyoyaqala ukuvela, kwaye abavelisi basebenzisa itekhnoloji yokuqalisa ukongeza umbala kunye nokuzikhusela kwiipleyiti zentsimbi, ukuhlangabezana neemfuno ezimbini zentengiso yobuhle kunye nokuqina. Ngeli xesha, iingubo eziphambili ezisetyenzisiweyo ziinkcitho ezisekwe kwi-oyile, nangona zinezibonelelo ezithile ekusebenzeni, kukhuselo lwendalo esingqongileyo, ukhuselo lwendalo kunye nokhuseleko olusafuneka luphuculwe.
Ngeminyaka yee-1970 ne-1980s, kunye nokuqhubela phambili kwe-resin yokwenziwa kwe-win kunye nenkqubo yokuthobela, inkqubo yemveliso ye-PPGI iphuculwe ngokuqhubekayo, kunye nemibala yemozulu kunye nemibala eyahlukeneyo yavela kwi Intengiso yokuhlangabezana neemfuno zomntu ngamnye zabathengi ezahlukeneyo. Ngeli xesha, i-PPGI yaqala ukuba isetyenziswe ngokubanzi ngaphakathiUphahla lokwakha kunye nodonga, ukuba yinxalenye ebalulekileyo yoyilo lwangoku.
Emva kokungena kule nkulungwane yama-21, ukukhuthaza ukubaluleka kwendalo esingqongileyo kuye kwasenze ishishini lokupeyinta ukuze kuphuhliswe kwicala loKhuseleko oluLuhlaza nolwesikeleleko. Abavelisi abaninzi baqala ukamkela iingubo ezinamanzi asekwe emanzini kunye neengubo zangaphakathi zokunciphisa ifuthe labo lokusingqongileyo. Oku kutshintsha akuphuculi ukhuseleko lwe-PPGI, kodwa kukwenza ukuba kukhuphiswano ngakumbi kwintengiso. Ngeli xesha, umhlaba we-PPGI wandiswa ngakumbi ukubandakanya amashishini amaninzi anje ngeendawo zombane zasekhaya kunye nabangeneli bezithuthi, bebonisa ukuphakama kwahlukahlukaniso kunye nokuzibandakanya.
Nxibelelana nathi ngolwazi oluthe kratya
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Ngenkqubela phambili eqhubekayo yesayensi kunye netekhnoloji, amathuba okuphuhlisa kwixesha elizayo ye-PPGI abanzi. Ukuqaliswa kwezixhobo ezitsha kunye neetekhnoloji kuzakutyhala i-PPGI ngokusebenza okuphezulu kunye nokuphuhliswa kobuhlobo kwindalo esingqongileyo. Ngokwanda kokugxininiswa kwisakhiwo esizinzileyo kunye noyilo oluhlaza, kulindeleke ukuba idlale indima enkulu kwezi ndawo.
Ukushwankathela,Imibala ye-PPGI yombalaube yinto engenakuphikiswa kwishishini lanamhlanje kunye neempawu zabo ezibalaseleyo zomzimba kunye nenkangeleko entle. Ngenkqubela phambili eqhubekayo yetekhnoloji kunye notshintsho kwimfuno yentengiso, ukusetyenziswa kwe-PPGI kuya kuqhubeka nokwandisa, ukuzisa amathuba amaninzi kubomi bonke bobomi.
IXESHA LOKUQALA: I-Oct-12 ukuya ku-524