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Mafuremu egirazi remaziso esimbi anogadzirwa sei?
dhizaini yemagirazi Iyo yese yegirazi furemu inoda kugadzirwa isati yaenda mukugadzira. Magirazi haasi zvakanyanya chigadzirwa cheindasitiri. Muchokwadi, iwo akada kufanana neakaitwa nemaoko emunhu uye obva agadzirwa-zhinji. Kubva ndichiri mudiki, ndainzwa kuti homogeneity yemagirazi haisi seri ...Verenga zvimwe -
Mafuremu eacetate ari nani pane mafuremu epurasitiki?
Chii chinonzi cellulose acetate? Cellulose acetate inoreva thermoplastic resin inowanikwa ne esterification ine acetic acid sechinhu chinonyungudutsa uye acetic anhydride se acetylating agent pasi pechiito che catalyst. organic acid esters. Sainzi Paul Schützenberge akatanga kugadzira fiber iyi muna 1865, ...Verenga zvimwe -
Sei uchisimbirira kupfeka magirazi ezuva kana uchibuda?
Pfeka magirazi ezuva paunenge uchifamba, kwete kungoonekwa chete, asiwo kune hutano hwemaziso. Nhasi tichataura nezvemagirazi ezuva. 01 Dzivirira maziso ako kubva kuzuva Izuva rakanaka rerwendo, asi haugone kuramba wakavhura maziso ako kuzuva. Nekusarudza peya yemagirazi ezuva, unogona n...Verenga zvimwe -
Zvakanakira kupfeka magirazi.
1.Kupfeka magirazi kunogona kugadzirisa maonero ako Myopia inokonzerwa nekuti chiedza chiri kure hachigoni kutariswa pane retina, zvichiita kuti zvinhu zviri kure zvive zvisina kujeka. Zvisinei, nekupfeka myopic lens, mufananidzo wakajeka wechinhu unogona kuwanikwa, nokudaro kugadzirisa chiono. 2. Kupfeka magirazi kunogona ...Verenga zvimwe -
Magirazi ezuva zvakajairika
Sunglass imhando yezvinyorwa zvekuchengetedza hutano zvekudzivirira kusimbaradza kwakasimba kwechiedza chezuva kubva mukukuvadza maziso evanhu. Nekuvandudzwa kwezvinhu zvevanhu uye tsika, girazi rezuva rinogonawo kushandiswa serunako kana kuratidza zvishongo zvakakosha zvemaitiro emunhu. Sungla...Verenga zvimwe