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Cenosphere (microsphere)
1.Fly tshauv hollow pob uas tuaj yeem ntab hauv dej.
2.Qhov yog greyish dawb, nrog nyias thiab hollow hnyav, luj, m3, thiab particle loj txog 0.1 mm.
3.Widely siv nyob rau hauv kev tsim ntawm lub teeb phaus casib thiab roj drilling thiab hauv ntau yam kev lag luam.
