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Mumusika, vanhu vazhinji havazivi zvakawanda nezve upfu hwegirazi rakakuyiwa uye tambo dzakachekwa dzegirazi, uye vanowanzo vhiringidzika. Nhasi tichataura musiyano uripo pakati padzo:

Kukuya upfu hwegirazi kunoreva kupwanya filaments dzegirazi fiber (dzasara) kuita hurefu hwakasiyana (mesh) nenzira yekupwanya, uye tambo dzakachekwa negirazi fiber dzinochekwa kuti dzigadzire hurefu hwakasiyana hwetambo dzakachekwa negirazi fiber. Mabhenefiti esiriki: kureba kwefiber kwakanyatsojeka, huwandu hwakawanda hwefiber, dhayamita yakafanana ye monofilament, kuyerera kwakanaka kwefiber muzvikamu zvisati zvapararira, hapana magetsi asingachinji nekuti haina organic, inodzivirira kupisa kwakanyanya, simba rekukwesha muchigadzirwa. Inoenderana uye inogona kugadzira chimiro che network chetatu-dimensional three-dimensional, kuitira kuti chigadzirwa chive nekuzvipira kwakanaka uye simba rekukwesha, simba rekukwesha, uye fibers dzinopararira mukona yega yega yechigadzirwa nehurefu hwakafanana, saka simba rekukwesha rechigadzirwa rinoenderana.
Kukuya upfu hwegirazi nefiber hakugone kuitwa, nekuti inzira yekupwanya, kureba kwefiber hakugone kuvimbiswa, kune refu nepfupi, uye kune upfu, nekuti itsvina inodhonzwa nevashandi vanodhonza, uye mune tsvina yakawanda mairi, uye monofilament dhayamita haina kuvimbiswa, uye upfu hwakakora kana hutete, saka mushure mekuwedzera kuchigadzirwa, simba harigone kuvimbiswa, kukosha kwesimba rekona yega yega kwakasiyana, uye zviri nyore kutenderera nekuungana.