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Enziwa kanjani amafreyimu engilazi yamehlo ensimbi?
idizayini yezibuko Lonke uhlaka lwengilazi yamehlo ludinga ukuklanywa ngaphambi kokuthi luzokhiqizwa. Izibuko aziwona kangako umkhiqizo wezimboni. Eqinisweni, zifana kakhulu nomsebenzi wezandla womuntu siqu bese zikhiqizwa ngobuningi. Kusukela ngiseyingane, nganginomuzwa wokuthi i-homogeneity yezibuko ayiyona i-seri...Funda kabanzi -
Ingabe amafreyimu e-acetate angcono kunezinhlaka zepulasitiki?
Iyini i-cellulose acetate? I-Cellulose acetate ibhekisela ku-resin ye-thermoplastic etholwe nge-esterification ene-acetic acid njenge-solvent ne-acetic anhydride njenge-acetylating agent ngaphansi kwesenzo se-catalyst. i-organic acid esters. Usosayensi uPaul Schützenberge waqala ukwenza le fiber ngo-1865, ...Funda kabanzi -
Kungani uphikelela ukugqoka izibuko zelanga uma uphuma?
Gqoka izibuko zelanga lapho uhamba, hhayi nje ngokubukeka, kodwa futhi nempilo yamehlo. Namuhla sizokhuluma ngezibuko zelanga. 01 Vikela amehlo akho elangeni Kuwusuku oluhle lohambo, kodwa awukwazi ukugcina amehlo akho evuleke elangeni. Ngokukhetha izibuko zelanga, ungakwazi uku...Funda kabanzi -
Izinzuzo zokugqoka izibuko.
1.Ukugqoka izibuko kungalungisa umbono wakho I-Myopia ibangelwa ukuthi ukukhanya okukude akukwazi ukugxila ku-retina, okwenza izinto ezikude zingacaci. Kodwa-ke, ngokugqoka i-lens ye-myopic, isithombe esicacile sento singatholakala, ngaleyo ndlela silungise umbono. 2. Ukugqoka izibuko kungaba ...Funda kabanzi -
Izibuko zelanga umqondo ovamile
I-Sunglass iwuhlobo lwezihloko zokunakekelwa kwezempilo kwamehlo zokuvikela ukugqugquzelwa okunamandla kokukhanya kwelanga ekulimazeni amehlo abantu. Ngokuthuthukiswa kwezinto ezibonakalayo nezinga lamasiko abantu, ingilazi yelanga ingasetshenziswa njengobuhle noma ibonise ubucwebe obukhethekile besitayela somuntu siqu. Sungla...Funda kabanzi