Ngokuqhubela phambili okuqhubekayo kwenkqubo yokufudukela ezidolophini, ukwakhiwa kobunjineli betonela kuya kubaluleke ngakumbi nangakumbi.Kubunjineli betonela, i-hydraulic rock drills, njengesixhobo esisebenzayo nesithembekileyo, isetyenziswa ngokubanzi kwimisebenzi yokutyumza amatye kunye nokugrumba amatye.Drillin...
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