Cov haujlwm tsim vaj tsev nrog cov kev xav tau tshwj xeeb rau cov kev daws teeb meem tshwj xeeb thiab cov qauv tsim tshwj xeeb. TECON zoo siab los tsim rau cov neeg siv khoom muaj nqis thoob plaws ntiaj teb.