Vim li cas xaiv cov tawb kaw cov thawv ntim cov thawv

Nrog rau kev txhim kho kev lag luam niaj hnub no, muaj ntau txoj haujlwm ntawm cov chaw tsim khoom, tab sis kuj tseem tuaj yeem faib ua cov ntoo crary thiab nws muaj ntau yam ntoo sib xyaw ua ke rau lawv cov ntaub ntawv, thiab lawv feem ntau ntawm cov qauv tsim los ntawm cov qauv. Cov khoom siv hlau cia, xws li nrov dua li lwm cov khoom {{}} cia khoom siv tam sim no yog Haum rau ntau yam khoom lag luam, xws li cov khoom lag luam hlau, zam txim, cov khoom siv tsheb, qhov chaw tsheb, tshuab engineering thiab yog li ntawm {8} {8}