Raws li cov kws tshaj lij tub rog, kev ua tiav kev ua tiav ntawm kev sib ntaus sib tua nrog kev poob qis tshaj plaws ntawm cov tub rog yog ua tau nrog kev sib xyaw ua ke ntawm kev tawm tsam thiab tiv thaiv. Txhawm rau tiv thaiv lawv tus kheej los ntawm lub tshuab rab phom thiab tsis siv neeg tua hluav taws, lub plhaub tawg thiab cov mines, cov neeg tua hluav taws yuav tsum kawm kom txawj siv ntau yam kev camouflage thiab terrain tej yam kev mob. Yog li ntawd, dab tsi yog parapet, txhua tus txiv neej tub rog paub tseeb. Cov uas nyob deb ntawm cov tub rog tab sis xav nthuav lawv lub qab ntug tuaj yeem nyeem cov kab lus no.
Pab yog dab tsi?
Brustwehr txhais tias "lub hauv siab" thiab "tiv thaiv" hauv German. Lub parapet yog ib feem ntawm lub fortification nyob rau hauv daim ntawv ntawm ib tug embankment. Lub hom phiaj yog los npog cov neeg tua hluav taws los ntawm kev saib xyuas yeeb ncuab, tiv thaiv lub plhaub thiab cov mos txwv, thiab tseem muab kev yooj yim thaum tua. Parapets yog siv los tsim cov haujlwm sib ntaus sib tua. Yog hais tias ib tug tub rog, npaj los tawm tsam tus yeeb ncuab tawm tsam, ntxiv dag zognyob rau hauv av, ces lub caij no ntawm lub fortification yuav dhau los ua ib qho teeb meem ntxiv.
About device
Sab hauv ntawm lub parapet tau los ua ib qho chaw rau barbette, sab nrauv los ua ib qho chaw rau berm. Ib tug barbet yog ib tug tshwj xeeb bulk platform uas ib tug artillery piece yog ntsia. Ib tug berm yog ib tug bulk ledge sab nraum lub parapet. Tsis zoo li lub embrasure, lub ntsiab lus no muab cov fighter nrog lub kaum zoo tshaj plaws rau aiming phom, tab sis tsawg tiv thaiv los ntawm mos txwv. Txawm li cas los xij, nrog rau kev siv lub berm, nws yuav tsis yooj yim heev rau tus neeg tawm tsam kom tau txais ntawm lub parapet ntawm lub trench. Nyob rau tib lub sijhawm, lub xub ntiag ntawm berm muaj qhov cuam tshuam zoo rau kev nrawm ntawm kev tsim kho ntawm lub fortifications: cov neeg ua haujlwm txhim kho lub rooj zaum tuaj yeem sawv ntawm nws. Thaum sib ntaus sib tua, thaum lub plhaub thiab cov mos txwv ntaus rau sab nrauv, hauv av tuav ntawm lub berm thiab tsis swb mus rau hauv kwj.
lub fortification yog dab tsi?
Hlau tuaj yeem siv los ua cov khoom siv hauv kev tsim khoom. Xws li ib tug parapet yog hu ua armored. Hloov chaw ntawm lub ntiaj teb rampart, cov cuab yeej yog them nrog ib tug tuab hlau phab ntsa, uas yog sawv cev los ntawm ib tug segments fastened rau ib leeg los ntawm txoj kev ntawm bolts thiab wedges. Tsis tas li ntawd, rau kev tsim kho ntawm parapets, ntuj pob zeb, ntoo thiab lwm yam khoom siv hauv tsev yog siv. Raws li cov kws tshaj lij, cov tub rog feem ntau siv thaj av zoo tib yam rau lub hom phiaj no. Qhov kev xaiv no yog vim qhov tseeb tias cov khoom siv no pheej yig thiab ib txwm nyob ntawm tes. Tsis tas li ntawd, yog hais tias ib tug projectile hits ib tug earthen parapet, fragments yuav tsis tsim. Cov nyhuv opposite muaj nyob rau hauvntoo thiab pob zeb fortifications.
Nyob hauv kaw
Yog hais tias tus parapet raug txhim tsa kom raug, tus neeg tua rog yuav tsis ntshai ntawm cov yeeb ncuab hluav taws los ntawm caj npab me. Txawm li cas los xij, sab saum toj ntawm lub fortifications tsis dav txaus thiab nkag tau zoo los ntawm cov plhaub.
