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I-TRD-60D / 60E yokucheba umsele kunye nokuxuba kwakhona izixhobo zeNdlela yoDonga oluNzulu
Ukusika umjelo Ukuxuba ngokutsha indlela yeDonga (i-TRD ngokufutshane) kwahlukile kwindlela yoMdonga oDityanisiweyo weSMW (SMW). Ngendlela ye-TRD, isixhobo somxokelelwano sibekwe kwindawo ende eluxande "yokusika" kwaye ifakwe emhlabeni, ukuze isuswe ngokunqamlezayo ukusika kunye noku groutwa, ukuxuba, ukuvuselela kunye nokudityaniswa komhlaba kwindawo yokuqala, ukuze Yenza udonga olungaphantsi lwedayari.
