Cov ntawv luam tawm yog cov ntsuas vaj huam sib luag rau kev ntsuas qhov ntim ntawm phau ntawv, uas tsis tshua muaj siv nyob rau hauv phau ntawv niaj hnub thiab ntawv xov xwm thiab ntawv xov xwm kev lag luam. Hauv kev sau ntawv xov xwm, nws yog kev coj los suav lub ntim ntawm cov ntawv sau nyob hauv ntau txhiab tus cim, thiab hauv phau ntawv tshaj tawm - hauv cov ntawv luam ntawv (thiab qee lub tsev tshaj tawm cov lus qhia rau Western cov qauv - hauv cov lus ntawm cov lus). Txawm li cas los xij, rau kev siv, paub txog dab tsi luam tawm ntawv yog thiab yuav ua li cas nws xam tsis mob.
Tsim nyog
- - qhov loj ntawm nplooj ntawv luam tawm;
- - qhov luaj li cas ntawm cov ntawv luam muaj ntawv;
- - Tus naj npawb ntawm nplooj ntawv hauv kev tshaj tawm;
- - tshuab xam zauv.
Cov Lus Qhia
Kauj ruam 1
Cov ntawv luam tawm ib txwm yog 90 cm ntev thiab 70 cm dav. Cov ntawv xov xwm paub txog txij li Soviet lub sijhawm kuj tseem txuas nrog cov ntawv luam tawm: A2, A3, A4, A5 (thawj ob yog siv nyob rau hauv kev xyaum feem ntau los ntawm cov ntawv xov xwm, qhov kawg ob - los ntawm cov ntawv xov xwm).
Lub sijhawm Soviet thiab post-Soviet, hauv hom ntawv A2 (uas yog, ib nplooj ntawv sib npaug ntawm ib nrab ntawm cov ntawv luam, xws li cov ntawv tshaj tawm Pravda lossis Literaturnaya Gazeta, A3 - Argumenty i Fakty) tau thiab txuas ntxiv rau kev tshaj tawm.
Los xam cov naj npawb ntawm cov nplooj ntawv luam tawm, qhov sib piv ntawm thaj chaw ntawm kev tshaj tawm rau nws loj.
Kauj ruam 2
Yog li, txhawm rau txheeb xyuas qhov ntim ntawm qhov kev tshaj tawm hauv cov nplooj ntawv luam tawm, koj xav tau cov ntaub ntawv pib ntawm qhov ntev thiab dav ntawm nws nplooj ntawv (lossis, raws li lawv hais hauv kev tshaj tawm lag luam, nplooj ntawv). Tshaj tawm qhov ntev ntawm txoj kab txaij los ntawm nws qhov dav. Qhov tshwm sim ntawm kev ua haujlwm leb no yuav yog thaj chaw ntawm ib kab. Piv txwv li, rau cov ntawv tshaj tawm nrog qhov dav sawb ntawm 20 cm thiab qhov ntev ntawm 30 cm, qhov no yog 600 sq. Cm.
Kauj ruam 3
Lub cheeb tsam ntawm cov ntawv luam tawm kuj yog yooj yim los laij. Tsuas khiab tawm 70 los ntawm 90 thiab koj tau txais 6300 sq. Cm.
Kauj ruam 4
Tam sim no koj yuav tsum tshawb nrhiav seb cov ntaub ntawv ntau npaum li cas cuam tshuam nrog cov ntawv luam tawm. Txhawm rau ua qhov no, faib thaj tsam ntawm nplooj ntawv ntawm kev luam tawm los ntawm thaj chaw ntawm nplooj ntawv luam tawm. Rau rooj plaub saum toj no, qhov sib piv no yog kwv yees li 0.095.
Kauj ruam 5
Tam sim no nce tus naj npawb ntawm cov nplooj ntawv hauv kev tshaj tawm los ntawm cov txiaj ntsig cov txiaj ntsig. Rau 100 nplooj ntawv ntawm qhov loj 20 los ntawm 30 cm, koj yuav tsum tau khoo cov coefficient 0, 095 los ntawm 100. Nws hloov tawm tias 100 nplooj ntawv ntawm kev cai tshwj xeeb yuav siv li 9, 5 daim ntawv luam tawm.
