Abstract: Daim ntawv ntawm tooj liab tooj
Nyob rau hauv txhua txhua hnub, tsis txhob hais dab tsi ntawm screws, txawm yog hais tias lub khov kho tooj liab hauv peb lub neej txhua hnub, muaj ntau, ntau. Screws muaj ib qho tseem ceeb hauv kev lag luam. Tsuav yog muaj kev lag luam hauv lub ntiaj teb, kev ua haujlwm ntawm screws tseem ceeb heev.
Hom tooj liab, yog tias nws yog ib qho tooj hlau tooj me me siv rau cov tsom iav los yog ib qho loj ntsia hlau siv nyob rau hauv ib qho loj-teev hnyav-hluav taws xob engineering, muaj ntau hom. Lub hom phiaj tseem ceeb tshaj plaws yog siv cov qib siab ntawm cov khoom tsim los ua ib qhov kev ruaj ntseg, yog qhov siv feem ntau tshwm sim ntawm cov hniav thiab cov hniav Tsis tuaj yeem kaw qhov tob hau lub hau tawm, los yog cov hniav tsis zoo tsis nruj heev thiab tsis tau raws li qhov kev siv ntawm kev siv, yog txhua yam teeb meem raug mob. Screws yog "ntau cov khoom" thiab tsis yog cov tsim cov artworks. Hauv kev tsim ntau lawm, lawv npaj los muab cov neeg tau txais kev pab cuam nrog cov cuab yeej ua tiav, ruaj khov thiab pheej yig tus nqi.
Copper screws yog ib qho tseem ceeb tsim nyog hauv txhua txhua hnub