Cov ncauj lus yog qhov muag heev, tab sis qhov tseem ceeb tshaj plaws, tsis mus nyob qhov twg. Feem ntau tsis muaj central phwj hauv Dacha arrays, thiab tsis tas yuav tsum kos nws tsis tsim nyog.
Lub teb chaws tsim no tsis sawv cev rau cov teeb meem hauv kev tsim kho, txhua yam dacket tuaj yeem npog nws. Feem ntau nws yog ib qho qauv yooj yim, tsis muaj kev tshwj xeeb kos duab kev lom zem. Qhov loj tshaj plaws yog kom nrawm, pheej yig, ruaj khov. Kev tsim kho feem ntau nqa tawm ntawm daim kab dam nrog ib lub ru tsev. Nws tsim nyog cov xim ntawm lub tsev ntoo ntawm cov yas, uas yog qhov yooj yim tau nruab, thaum nws yog qhov ruaj khov thiab pheej yig.
Qhov haujlwm nyuaj tshaj plaws ntawm cib, pob zeb thiab lwm cov ntaub ntawv masonry, nce mus rau khob fwj.
Thiab nws yog qhov ua tau rau txoj kev tsim muaj tswv yim, qhov tseem ceeb yog tsis tau rov ua dua, thiab tom qab ntawd lub tsev yuav tau rov tsim dua nyob rau hauv chav dej.
