Tam sim no, lub Hoobkas muaj cov khoom siv txaus, txhua tus uas yog los ntawm cov khoom lag luam zoo hauv lub tebchaws. Tom qab txhua pawg ntawm cov khoom nyoos tuaj txog, peb lub tuam txhab yuav sim tag nrho cov khoom, lub zog, lub zog tensile, thiab qhov loj me.
Thaum tsim nyog, lawv yuav muab tso rau hauv cov ntaub ntawv raw khoom.