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Yaya ake yin firam ɗin gilashin ido na ƙarfe?
ƙirar gilashin Gabaɗayan firam ɗin gilashin ido yana buƙatar ƙira kafin a fara samarwa. Gilashin ba samfurin masana'antu ba ne sosai. A haƙiƙa, sun fi kamance da na'urar hannu ta keɓantacce sannan kuma aka yi ta da yawa. Tun ina karama, na ji cewa kamannin tabarau ba haka ba ne.Kara karantawa -
Shin firam ɗin acetate sun fi firam ɗin filastik?
Menene cellulose acetate? Cellulose acetate yana nufin resin thermoplastic da aka samu ta hanyar esterification tare da acetic acid a matsayin mai narkewa da acetic anhydride a matsayin wakili na acetylating a ƙarƙashin aikin mai kara kuzari. Organic acid esters. Masanin kimiyya Paul Schützenberge ya fara haɓaka wannan fiber a cikin 1865, ...Kara karantawa -
Me yasa kuke dagewa da sanya tabarau idan kun fita?
Sanya tabarau lokacin tafiya, ba kawai don bayyanar ba, har ma don lafiyar ido. Yau za mu yi magana ne game da tabarau. 01 Kare idanunka daga rana Rana ce mai kyau don tafiya, amma ba za ka iya buɗe idanunka ga rana ba. Ta hanyar zabar tabarau na tabarau, za ku iya n...Kara karantawa -
Amfanin saka tabarau.
1.Sanye da tabarau na iya gyara hangen nesa Myopia yana faruwa ne ta hanyar gaskiyar cewa hasken da ke nesa ba zai iya mayar da hankali ga retina ba, yana haifar da abubuwa masu nisa ba a sani ba. Duk da haka, ta hanyar saka ruwan tabarau na myopic, ana iya samun hoton abin da ya dace, don haka gyara hangen nesa. 2. Sanya tabarau na iya ...Kara karantawa -
Gilashin tabarau na hankali
Gilashin rana wani nau'i ne na abubuwan kula da lafiyar idanu don hana ƙarfin kuzarin hasken rana daga cutar da idanun ɗan adam. Tare da haɓaka kayan mutane da matakin al'adu, ana iya amfani da gilashin rana azaman kyakkyawa ko nuna kayan ado na musamman na salon mutum. Sungla...Kara karantawa