Ngemva kokusebenza njengomshini iminyaka eminingi kangaka, akumele wazi incazelo yamalebula ezikrinini, akunjalo? Amamaki okusebenza ama-bolts oxhumano lwesakhiwo sensimbi ahlukaniswe ngamamaki angaphezu kwe-10 njenge-3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, njll. Phakathi kwabo, amabhawodi ...
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