Makhalidwe a malonda:
Chipangizo chokonzera RTD-B ndi cholumikizira cha chitoliro chooneka ngati mphete chomwe chimagwira ntchito yotseka mwamphamvu komanso cholimba, chomwe chimagwiritsidwa ntchito kwambiri pokonza mwachangu kutuluka kwa mapaipi. Amatha kukonza mabowo amchenga ndi kusweka komwe kumachitika chifukwa cha ukalamba ndi dzimbiri popanda kusintha mapaipi. Ndi osavuta kuyika ndipo ali ndi luso lapamwamba lomanga. Amatha kugwiritsidwa ntchito popanda zida zapadera.















