Khoom Txheej Txheem
Khoom Paub meej
Cov ntaub ntawv download tau
Lwm Yam Khoom
Nais phoo
1.Prote forestload thiab luv luv cercuit
2.Proteection tiv thaiv cov thinusoidal hloov kho lub ntiaj teb
3.Proteion tiv thaiv kev sib cuag nrog Indirect thiab kev tiv thaiv ntxiv rau kev coj ncaj qha.
4. Crotrotion tawm tsam hluav taws kev phom sij muaj nqis cuam tshuam
5.ususive nyob rau hauv thaj chaw nyob
6.Txawm hom kev tso tawm hauv qab no: Hom B (3-5) hauv, hom C (5-10) hauv
Tiv Tauj Peb
1. Kev tiv thaiv kev tawm tsam ntau dhau thiab cov dej tsis sib xws.
2. Tiv thaiv cov teebmeem ntawm Sinusoidal lwm txoj kev txhaum ua txhaum.
3. Kev tiv thaiv tawm tsam kev sib cuag ncaj qha thiab kev tiv thaiv ntxiv rau kev sib cuag ncaj qha.
4. Kev tiv thaiv tawm tsam hluav taws kev phom sij tau tshwm sim los ntawm rwb thaiv tsev ua txhaum.
5. Siv nyob rau hauv lub tsev nyob.
6. Raws li hom kev tso tawm nrawm nrawm raws li hauv qab no: Hom B (3-5) LN, hom C (5-10) LN.