1, phambi kokusetyenziswa kufuneka kujongwe ukuba ngaba amalungu aqhelekileyo.I-2, ukusetyenziswa kokuthotyelwa okungqongqo kufuneka kube yimimiselo ephambili yezibonelelo, akufanele kube yi-ultra-high overload, okanye xa ukuphakama kokunyusa okanye ukunyusa i-tonnage ngaphezu kwezibonelelo eziphezulu ze-cylinder kuya kuba yi-oil spill enzulu.3,...
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