Makhalidwe awo ndi awa:
Mphamvu Zapamwamba: Njanji nthawi zambiri zimapangidwa ndi chitsulo chapamwamba kwambiri, chomwe chili ndi mphamvu zambiri komanso kuuma ndipo chimatha kupirira kupsinjika kwakukulu ndi kukhudzidwa kwa sitima. Kutha Kulukana: Njanji zimatha kulumikizidwa m'magawo ataliatali kudzera mu kuwotcherera, zomwe zimapangitsa kuti njanji yonse ikhale yolimba komanso yotetezeka.
Miyezo ya njanjinthawi zambiri zimakhazikitsidwa ndi International Organization for Standardization (ISO) ndi miyezo ya makampani a sitima zapadziko lonse. Nazi zina mwa miyezo yodziwika bwino ya sitima:
Sitima Yachitsulo Yokhazikika ya GB, njanji yachitsulo yokhazikika ya AREMA, njanji yachitsulo yokhazikika ya ASTM, njanji yachitsulo yokhazikika ya EN, njanji yachitsulo yokhazikika ya BS, njanji yachitsulo yokhazikika ya UIC, njanji yachitsulo yokhazikika ya DIN, njanji yachitsulo yokhazikika ya JIS, njanji yachitsulo yokhazikika ya AS 1085, njanji yachitsulo ya ISCOR.
Nthawi yotumizira: Epulo-03-2024