Mpweya zitsulo chitoliro ndi dzenje zitsulo bala, ambiri mipope zonyamulira madzi monga mafuta, gasi, madzi, mpweya, nthunzi, etc. Komanso, kuchita kupinda, torsional mphamvu, mbandakucha, kotero chimagwiritsidwa ntchito mu kupanga zida zamakina ndi zomangamanga. Ndimagwiritsanso ntchito ...
Werengani zambiri