Ngemuva kwalokho, kunamandla okushayela ulayini owodwa kuphela ngesikhathi senqubo yokwelula yomshini we-hydraulic, futhi akukho mandla okushayela "angled." Umphumela lokhu uzodala ukuthi uhlelo lokucubungula lube nempilo ende nokusebenza okwengeziwe. Veza.
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