2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob hauv lub log tsheb tsis zoo, cov hlua (plies) khiav ntawm 45-degree kaum ntawm hlaws mus rau hlaws. Cov qauv kab pheeb ces kaum no yog criss-hla nrog txhua txheej ntawm ply qaum, thiab tsim cov qauv nruj heev. Hauv kev ua lag luam vintage tsheb, cov log tsheb tsis ncaj ncees muaj qhov nqaim tread profile, nrog lub xub pwg ntse uas feem ntau muaj lub ntsej muag piecrust.
Yuav ua li cas ply log tsheb zoo rau?
Lub log tsheb tsis sib haum yog qhov hloov pauv tau yooj yim dua, yog li lawv tuaj yeem ua rau lub log tsheb loj thiab rub radialsqhov chaw flex yog qhov zoo. Lawv kuj pom zoo traction ntawm qis ceev thiab nyob rau hauv txoj kab ncaj nraim mus.
Dab tsi yog qhov teeb meem ntawm cov log tsheb tsis zoo?
Bias-ply log tsheb' stiff sidewalls ua tau zoo nyob rau hauv cov khoom hnyav. Lawv qhov tsis muaj flex kuj txhais tau hais tias lub sidewall yuav tsis "tshem tawm" nyob rau hauv ib qho yooj yim li radial. Thaum cov maus taus tawm ntawm lub Hoobkas nrog kev tsis ncaj ncees-plies thiab radials sib xyaw, qhov kev tsis ncaj ncees-ply yog ib txwm nyob rau pem hauv ntej.
Puas yog cov log tsheb tsis zoo?
Vim lawv ntau txheej, kev tsis ncaj ncees ply log tsheb feem ntau muaj qhov zoo dua thaum nws los txog rau lub peev xwm thauj khoom. Vim tias muaj cov lej sib xws los txhawb nqa qhov hnyav ntawm lub tsheb hauv ob lub ntsej muag tread thiab sab phab ntsa, cov log tsheb tsis zoo yog feem ntau zoo dua thaum thauj khoom hnyav.
Dab tsi yog qhov zoo ntawm kev sib tw ply log tsheb hla radial TYRE?
Bias ply zoo muaj xws li: Tsawg nyuaj log tsheb thiab, yog li ntawd,feem ntau tus nqi qis dua. Cov phab ntsa stiffer tuaj yeem ua tau zoo dua hauv qee qhov kev siv, xws li cov log tsheb trailer qhov twg lub log tsheb tsis sib haum tuaj yeem xa cov sway tsawg dua thiab thaws dua li radial.
Pom zoo:
Nyob rau hauv angiosperms pollen yog tsim nyob rau hauv anthers ib feem ntawm?
Nyob rau hauv angiosperms, paj ntoos yog tsim los ntawm anthers ntawm the stamens hauv paj. Hauv gymnosperms, nws yog tsim nyob rau hauv microsporophylls ntawm microstrobili (txiv neej paj ntoos cones). Pollen muaj ib los yog ntau tshaj cov noob qoob loo thiab ib lub qe qe.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Nyob rau hauv cab thiab cab lub log lub ncej ncej nyob ntawm?
Cov no yog cov iav uas tsis yog coplanar uas nws cov ncej axes tuaj yeem ua raws ntawm txhua lub kaum ntawm 0 txog 90 °. Worm gears, hypoid gears, thiab cross-helical gears yog hom iav tseem ceeb hauv pawg no. Cov kab mob cab: Cov cab cab muaj cov cab cab thiab cov cab cab uas nws cov ncej tso rau ntawm lub kaum sab xis mus rau lwm qhov.
Lub log tsheb twg hnav sai dua ntawm lub tsheb?
Kuj, log tsheb pem hauv ntej nyiam hnav ntau dua ntawm ntug, thiab cov log tsheb nram qab ntau dua hauv nruab nrab. Txij li cov khoom no muaj tseeb, tsis yog tsuas yog hnav yuav raug faib ntau qhov sib npaug ntawm tag nrho plaub lub log tsheb, tab sis tag nrho plaub lub log tsheb yuav hnav ntau dua sib npaug thoob lub ntsej muag, thiab yog li hnav ntev dua.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
