sithole i-oda lezikrini zephiramidi ezingu-348 ezithatha indawo ka-Derrick Hyperpool, futhi ngemva kwezinsuku eziyishumi zokukhiqiza, saqedela le qoqo lezikrini ze-shaker zeklayenti lethu elidala. Azosetshenziswa ku-Derrick Hyperpool shale shaker endaweni yokumba uwoyela. Ngokuvamile isikrini se-shaker sinemeshi enhle (eyodwa, d...
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