Scissor nqa - Raws li cov lus qhia tshwj xeeb thiab cov tsis muaj, raws li qhov sib txawv daim ntawv thov scenarios thiab xav tau, txiab nqa cov rooj muaj nyob rau hauv ntau hom qauv, npog qhov sib txawv qhov siab, load-bearing capacities, workbench ntau thiab tsawg thiab lwm yam configurations kom tau raws li tus neeg xav tau kev pab. cov neeg siv.