Muab cov khoom siv kho kom haum raws li qhov xav tau tiag tiag ntawm cov neeg siv khoom hauv ntau yam lag luam, xws li: kev ua thiab tsim cov lag luam RV; kev tsim tsheb; kev ua thiab tsim cov pas nrig thiab cov blocks semiconductor silicon; kev tuav cov roj teeb tshiab; kev ua cov iav tob; kev teeb tsa cov phab ntsa iav, thiab lwm yam.












