Siv tawv txheem Ofator yog ib qho khoom siv conveying khoom siv dav hauv ntau yam lag luam. Cov hauv qab no yog qhov zoo thiab tsis zoo ntawm txoj siv ntawm cov khoom siv nce qib: txoj siv hluav taws xob tuaj yeem faib cov khoom muaj peev xwm loj thiab haum rau cov khoom txuas ntxiv ntawm cov khoom siv. Muaj kev nyab xeeb thiab txhim khu kev txhawb siab: lub siv Hoed tau ruaj khov thiab txhim khu kev qha cov yam ntxwv kev nyab xeeb, uas tuaj yeem ua kom muaj kev pheej hmoo ntawm tib neeg kev ua haujlwm. Saj zawg zog thiab sib txawv: Tus tsim ntawm txoj siv hluav taws xob tau tuaj yeem hloov kho raws li cov chaw sib txawv thiab cov khoom yuav tsum muaj, thiab haum rau kev thauj mus los ntawm ntau cov ntaub ntawv. Qhov chaw txuag: lub siv tawv Hoist nyob rau thaj chaw me me, uas tuaj yeem ua kom zoo txuag lub chaw ua khoom. Tsis ntev: Kev siv hluav taws xob siab: txij li txoj siv zog Hoist xav tau tsav lub

Lub cev muaj zog ua haujlwm, nws yuav noj lub zog ntau dua thiab ua rau qee qhov nyiaj ntawm cov khib nyiab. Tus nqi txij nkawm: Kev tu ntawm txoj siv tawv Hoist yuav tsum tau nqa tawm tsis tu ncua, kev saib xyuas ntawm saw, thiab tus txij nkawm yog tus nqi qis. Tsis haum rau ib puag ncig kub siab: cov khoom siv Hoist yog feem ntau roj hmab lossis kab xev, uas muaj yooj yim deform thiab lub hnub nyoog nyob rau hauv kev kub ntxhov. Muaj qee cov kev txwv ntawm cov ntaub ntawv: txoj siv hluav taws xob muaj cov nyhuv yooj yim ntawm cov ntaub ntawv me me lossis qis dhau ntawm cov khoom siv lossis cov khoom siv. Nws yog ib qho tsim nyog los ntsuas qhov zoo thiab qhov tsis zoo ntawm txoj siv ntawm cov kev xav tau thiab cov kev thov tshwj xeeb, yog li xaiv cov khoom tsim nyog tshaj plaws.