Daim Ntawv Thov
Lub tshuab kaw lub thawv sab laug thiab sab xis yog tsav los ntawm ob sab ntawm txoj siv. Nws siv daim kab xev kaw tam sim ntawd, kev kaw sab saud thiab sab qis, ceev, ruaj khov, thiab qhov cuam tshuam ntawm kev kaw yog du, tus qauv thiab zoo nkauj. Nws tuaj yeem hloov kho tes raws li cov lus qhia ntawm lub thawv, dav thiab qhov siab. Nws yooj yim thiab yooj yim, tuaj yeem hloov cov neeg ua haujlwm, txuag 5-10% ntawm cov khoom siv, yog qhov kev xaiv zoo tshaj plaws rau cov lag luam kom txuag tau cov nqi, txhim kho kev ua haujlwm ntau lawm, thiab ua tiav kev ntim khoom tus qauv. Lub tshuab kaw yog siv dav hauv cov khoom noj, tshuaj, khoom ua si, luam yeeb, tshuaj txhua hnub, khoom siv hluav taws xob thiab
lwm yam kev lag luam.