Ntaub hoob nab rewinder yog ib qho ntawm cov khoom tseem ceeb tshaj plaws hauv cov ntaub hoob nab tshuab. Nws lub ntsiab muaj nuj nqi yog los ua rewire cov ntaub ntawv loj loj (piv txwv li cov ntaub so cov ntaub so tawm los ntawm cov ntaub pua chaw ntawm cov ntaub so haujlwm kom haum rau cov neeg siv khoom siv.
Lub tshuab rewinding tuaj yeem kho cov tsis xws li qhov ntev thiab nruj ntawm cov tshuab raj, xuas ua haujlwm xws li tsis siv neeg, thiab lwm yam ntawm cov ntaub hoob nab. Piv txwv li, 1880 chav dej rewinder yog qhov haum rau tsev neeg kev cob qhia lossis cov ntaub ntawv tso quav me ua cov nroj tsuag. Nws cov ntaub ntawv nyoos loj yog tsim nyog rau cov ntawv loj Axis hauv qab 2.2 meters, nrog qib siab ntawm kev siv tshuab, uas tuaj yeem txuag cov nqi zog.
Lub Sijhawm Post: Kaum-23-2024