Qhov hluav taws kub tsis kam ntawm UL qhov rooj hluav taws yuav tsum tsis txhob muaj qhov nkag ua ntej lub thav duab thiab nplooj thiab nruab nrab ntawm tus ncej thiab phab ntsa. Ua qhov ntsuas hluav taws kub rau lub sijhawm teev tseg (60min / 90min) thiab cov dej ntws tom ntej ntawm qhov rooj hluav taws.