1, cylinder sieve (1) Mwube nke cylindrical sieve Igwe mkpuchi cylinder bụ nke sitere na sistemụ nnyefe, ogwe isi, eriri sieve, ntupu ihuenyo, mkpuchi mkpuchi na etiti. Iji nweta irighiri ihe dị iche iche nha nha n'otu oge, nha dị iche iche nke scre ...
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