1. Tsis txaus lub zog tuav thiab qhov tsis zoo blanking nto yuav ua rau muaj teeb meem ntawm" puab looseness thiab txheej nruj"
2. Cov roj nplua nyeem ntau dhau, txhuam ntau dhau, lossis txhuam tsis raug;
3. Kev sim pwm dawb paug yog mos heev thiab cov khoom siv zog tsawg. Yog tias qhov loj me me dhau lawm, nws yuav tsis compacted;
4. Qhov chaw ntawm qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob.
5. Cov cuab yeej xuas nrig ntaus kev taw qhia tsis raug.
