A saw hlau hoistyog ib hom khoom siv nqa uas siv saw hlau los nqa thiab txo cov khoom hnyav. Nws muaj saw hlau, lub tshuab nqa, thiab tus nuv lossis lwm qhov chaw txuas rau kev ruaj ntseg ntawm cov khoom. Cov saw hlau nqa tuaj yeem ua haujlwm tes lossis siv hluav taws xob lossis cua.
Muaj ob hom tseem ceeb ntawm cov saw hlau hoist:
Cov Tshuab Nqa Tes Ua Haujlwm: Cov no yog siv los ntawm kev rub ib txoj saw tes, uas koom nrog lub tshuab nqa tes los tsa lossis txo qhov hnyav. Lawv feem ntau siv rau hauv cov xwm txheej uas tsis muaj hluav taws xob lossis qhov chaw uas xav tau kev nqa mus los.
Cov Tshuab Nqa Hluav Taws Xob: Cov no siv lub tshuab hluav taws xob thiab tuaj yeem nqa cov khoom hnyav dua sai dua thiab siv zog tsawg dua li cov tshuab nqa tes. Lawv feem ntau siv rau hauv cov chaw lag luam, cov tsev rau khoom, thiab cov chaw tsim kho.
Cov saw hlau hoist tau txais txiaj ntsig rau lawv lub peev xwm los tsa cov khoom hnyav kom muaj kev nyab xeeb thiab ua haujlwm tau zoo, ua rau lawv yog cov cuab yeej tseem ceeb hauv ntau yam kev siv, suav nrog kev tsim kho, kev tsim khoom, thiab kev saib xyuas. Lawv tau tsim los tswj cov peev xwm hnyav tshwj xeeb, thiab cov yam ntxwv kev nyab xeeb xws li kev tiv thaiv kev thauj khoom ntau dhau feem ntau suav nrog los tiv thaiv kev sib tsoo.
Lub sijhawm tshaj tawm: Lub Ob Hlis-28-2025