Txhim kho cov cuab yeej siv nruj raws li cov kev cai tshwj xeeb rau kev teeb tsa cov khoom siv hluav taws xob.
Siv cov khoom siv hluav taws xob tshwj xeeb; tsis txhob hloov pauv tsis tau tso cai rau kev tsim lossis kev tsim kho.
Tsis tu ncua tshuaj xyuas thiab tswj kev nyab xeeb ntawm cov khoom siv hluav taws xob.
Ua tib zoo ua raws li cov txheej txheem kev khiav hauj lwm rau kev siv cable thiab kev saib xyuas.
Ua kev saib xyuas tsis tu ncua thiab tshuaj xyuas kom muaj kev nyab xeeb ntawm cov cables.