Tsis yog -tus qauv tshuab, feem ntau hu ua tsis yog- cov cuab yeej siv hluav taws xob tus qauv, yog hais txog tsis yog- cov cuab yeej siv tshuab hluav taws xob tau kho raws li cov neeg siv khoom xav tau.
Lawv yooj yim thiab yoog raws rau kev khiav lag luam, thiab lawv cov haujlwm tuaj yeem ntxiv thiab hloov kho raws li cov neeg siv khoom xav tau. Lawv tau siv dav hauv ntau yam xws li kev lag luam, hluav taws xob, kev kho mob, kev tu cev, aerospace, ntim, luam ntawv, textiles, sib dhos, tsheb tsim khoom, khoom noj khoom haus, thiab kev thauj mus los.
Piv nrog rau cov txheej txheem machinery, cov no yog cov cav tov raws li cov kev xav tau ntawm kev lag luam, muaj peev xwm ua tau raws li cov txheej txheem machinery tsis tuaj yeem, thiab ua tiav cov khoom tso tawm tsis tuaj yeem nrog cov qauv txheem. Raws li cov cuab yeej pabcuam rau cov tshuab txheem, lawv tau siv dav hauv ntau yam kev lag luam.
