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Kucheneswa kwembeu ndiro danho rekutanga mukugadzirisa mbeu.Nekuda kwekusiyana kwetsvina mumbeu, michina yakakodzera inofanira kusarudzwa yekuchenesa.Maererano nemhando dzakasiyana-siyana, inogona kugoverwa kuva tsvina huru uye zviduku zvishoma maererano nehukuru hwejometri;Maererano nehurefu, kune tsvina yakareba uye tsvina shoma;Maererano nehuremu, kune tsvina shoma uye tsvina inorema.Kunyangwe zviri zvinyoro zvinyoro, zvinogona kuramba zvine huremu hwakasiyana uye density (chaiyo giravhiti).Musiyano weruvara zvakare imhando yemhando yekusachena kwembeu.
Zvinhu zvakasiyana-siyana zvetsvina zvinotora nzira dzakasiyana dzekubvisa.Nzira dzakasiyana dzekubvisa dzinoda nzira dzakasiyana.Nheyo dzinotevera dzinowanzogamuchirwa.(1) Kana tsvina yacho yakareruka pane yembeu dzakajairwa, uye saizi iri pachena yakasiyana neiyo yemhodzi dzakajairwa, muchina wekuchenesa shuwa uchashandiswa.(2) Paunenge uchibvisa tsvina yakareba kana pfupi iyo iri pachena yakasiyana nehurefu nekukura uye ichiri kusakwanisa kubviswa mushure mekugadzirisa kupatsanurwa kwemhepo, socket-type indented separator ichashandiswa.(3) Mushure mekugadziriswa nemuchina wekuchenesa mhepo uye socket-type yekuchenesa muchina, hutsanana hwakavandudzwa zvakanyanya, uye saizi yechidimbu yakangofanana, asi kuchine tsanga dzakaomeswa nembeu dzakadyiwa nehonye dzinosanganiswa nechibage;Mbeu dzakaoma uye dzakasvava uye tsanga dzakagopwa mugorosi;Kune zviyo zvinodyiwa nehonye uye zvirwere mubhinzi, tsvina yakawanda iri pamusoro apa ndeye density (specific gravity) tsvina, iyo yakafanana nembeu yakanaka mukurema uye yakaoma kubvisa.Panguva ino, vanofanirwa kucheneswa nemuchina chaiwo wekuchenesa giravhiti.