Qhov twg yog qhov dej nres zoo tshaj plaws Bolt?
Oct 26, 2020
Muaj ntau ntau hom thiab qhov tshwj xeeb ntawm cov nres dej nres. Feem ntau,
sam xauv nees qaum dej tau nres pib siv. Qhov no hom ntawm cov dej nres bolts
muaj cov hlua txoj hlua txuas taw screws vuam, ob qho kev muab tso ua ke
thiab ya raws-pov thawj daim. Lub sijhawm luv hauv nruab nrab ntawm cov nplig
Txoj haujlwm tso yog qhov tuab ntawm phab ntsa, uas muaj qhov ua haujlwm ntawm qhov formwork
ntawm ob sab ntawm lub fulcrum; Cov dej noo-pov thawj daig nyob hauv nruab nrab
ntawm ob qhov tseeb qhov muab qhov tso tseg, uas muaj lub hom phiaj ntawm dej nres.
Nrog rau txoj kev nthuav dav hauv Suav teb' s kev tsim kho kev lag luam, daim ntawv thov ntawm
tshiab peb-ntu dej nres nres tau ua ntau thiab ntau dua. Ntawm
lawv, qhov sawv daws pom tshwm sim feem ntau yog cov tes tsho-peb-ntu dej nres thooj thiab
tapered-hom peb-seem dej nres thooj.
