Ukusuka emnothweni ohleliwe uye emnothweni wezimakethe ezweni lethu kuletha isidingo senhlalo kanye noshintsho lokuthambekela kokusetshenziswa.
Kusukela ngeminyaka yawo-1990s, ngokwesibonelo, ukuthengiswa emkhakheni wezohwebo ezweni lethu kwashintsha, ngobuningi ngaphandle kokupakisha ifomu lokuthengisa selithathelwe indawo 'ngokupakishwa' kwalo, 'ukupakishwa' kwalo ngokuhlukahluka kwalo okuhle kwesikhathi kanye nokupakisha okuhle. uzuze umusa wabathengi abaningi, kanye nokwenyuka kwesidingo semakethe kanye nokushintsha kokuthambekela kokusetshenziswa, isisindo somshini wokuhlola njengokwenziwa kwesimanjemanje kwamathuluzi okulinganisa aku-inthanethi njengendlela yokulinganisa ukupakisha, ukunakwa okwengeziwe ngabantu bebhizinisi kanye ne-metrology. umnyango.
Lesi sisetshenziswa sokukala esizenzakalelayo esinobuchwepheshe baso obuphezulu kanye nemisebenzi yokulawula impendulo ezenzakalelayo ehlukile, amakhemikhali amahle ekudleni, isikhungo sokusabalalisa izinto zemithi nezinye izimboni ezisetshenziswa kakhulu.
Imboni yemishini yokukala yezwe lethu ingomunye onomlando omude wezimboni zendabuko kanye nemboni ebalulekile eyisisekelo.
Ngokuhamba kweminyaka, imishini yokukala eyimishini inikezwa kuqala.
Ngawo-1980 kwaqala ukwandisa ukusetshenziswa kwemishini yokukala i-electronic kanye nokuthuthukiswa kwemishini emikhulu yokukala okuzenzakalelayo, kodwa i-intelligentise degree yayo uma iqhathaniswa nemikhiqizo yangaphandle efanayo, inegebe elithile.
Imikhiqizo yokuqukethwe kobuchwepheshe obuphansi iyizithiyo zokungena emakethe yamazwe ngamazwe e-China, ubunzima bokuthola izintshisekelo zamazwe ngamazwe.
Ekuhlanganisweni komnotho wezwe lanamuhla, i-China ayisakwazi 'ukuvimbela izithiyo eziphezulu zokuvikela imboni yasekhaya,' kuphela ngokudluliswa kobuchwepheshe bamazwe ngamazwe ukuhwebelana kwamazwe ngamazwe phakathi kokuhamba kwezimali zamazwe ngamazwe ukuhlomisa ibhizinisi lemishini yesisindo ezweni lethu, emakethe yamazwe ngamazwe ukuze umkhiqizo wesimanje.
Ngokuthuthuka kwesimanje, kodwa futhi nesidingo senhlalo isakhiwo ukuthambekela ukudla isakhiwo ukusetshenziswa kanye nenqubekelaphambili kwezobuchwepheshe kanye nohwebo ngamazwe.
Ukukhiqizwa kwezimboni zanamuhla nempilo yansuku zonke ayinakuhlukaniswa nesisindo, futhi ngokuthuthukiswa kokukhiqiza, ukunemba kwesisindo kuyathuthuka, ikakhulukazi ezimbonini zokupakisha, zokudla, zamakhemikhali, ezemithi kanye nezinye, kudingeka zibe nokunemba okuphezulu kwesisindo.
Ngesakhiwo somshini ukuthola idivayisi enesisindo esiphezulu, hhayi nje isakhiwo esiyinkimbinkimbi, nokusekelwa (
Iblade nombese)
Ibuthakathaka futhi kulula ukugqokwa nokugqwala, iqinile endaweni yokusebenza, umthwalo wesondlo mkhulu, ubuthakathaka obukhulu bulinganisa ijubane kancane, ukusebenza kahle okuphansi, futhi akukwazi ukuzivumelanisa nezidingo zokuthuthukiswa kokukhiqiza.
Ukuze unqobe amaphutha angenhla, ikhulu leminyaka elidlule lama-60, abantu bahlakulela uhlobo lwenhlanganisela ye-electromechanical isikali se-elekthronikhi, sakhiwe uhlelo lwe-lever, idivayisi ye-grating kanye nesifunda sezingxenye ezintathu.
Isistimu ye-Lever ngaphansi kwesenzo somthwalo, ukususwa, idivayisi yokugaya iguqulela ukuthuthwa kusekethe kagesi, isignali yedijithali ngemva kokuhlanganiswa ngokomkhiqizi onensimbi yedijithali ibonisa inani lesisindo.
Inhlanganisela ngokuya ngomkhiqizi walesi sikali kunokunemba okuthuthukisiwe kwesilinganisi se-lever, sebenzisa kalula kakhulu, amanani esisindo atholakalayo esibukweni esibonakalayo sedijithali, nesiginali yesisindo ingadluliswa ngebanga elide.
