Cov thawv tshaj tawm cov cim tau raug muab tso rau hauv kev siv, coj cov kev hloov pauv loj mus rau kev thauj khoom {}}
Cov txheej txheem siv cov koob yees duab siab rau cov koob yees duab thiab cov chaw ua si nkag tau zoo, nws tuaj yeem nyeem cov chaw nres tsheb thiab cov cim qhia kom paub meej, nws yog ib qho tsim nyog los ntawm txhais tes ntawm phau ntawv yog lub sij hawm-noj, zog-intensive thiab yuam kev-prone . Tam sim no los ua kom tiav cov cim thiab npe {8} {8}
Qhov no tsis tsuas yog txhim kho kev ua haujlwm ntawm cov khoom thauj khoom thiab kev hloov pauv thiab kev hloov pauv ntawm cov sijhawm tshiab ntawm cov sijhawm tshiab ntawm kev txhim kho tshiab ntawm ntau dua thiab kev txhim kho ntse.