Umbhobho wokuqhekeza iOli kunye neGesi
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Ithumbu lokuqhekeza iOli neGesi
Ngexesha elinye kusenziwa umbhobho wonikezelo lwamanzi okuqhekeka kwe-oyile ye-shale kunye nokusetyenziswa kwegesi
Ngexesha elinye kusenziwa umbhobho wonikezelo lwamanzi okuqhekeka kwe-oyile ye-shale kunye nokusetyenziswa kwegesi