1. Cov hlau yuav tsum tau tsim raws li txoj kev xaim hluav taws xob thiab qhov tsim nyog ntawm qhov chaw thauj khoom, thiab txoj kab uas hla yuav tsum raug xaiv kom raug;
2. Lub tshuab hluav taws xob hluav taws xob hluav taws xob yuav tsum tau kuaj xyuas tag nrho ua ntej kev teeb tsa, tshem tawm cov kev phom sij zais ntawm ferrite, carbon tsim, thiab kev sib cuag nrog lub cub hluav taws xob, thiab tsis txhob cuam tshuam luv luv los tiv thaiv kev tawg ntawm lub cub tawg hlau;
3. Cov hluav taws xob hluav taws xob hluav taws xob yuav tsum raug txuas kom raug raws li cov txheej txheem tsim thaiv thaum lub sijhawm teeb tsa;
4. Txheeb xyuas qhov ntsuas kub ntawm qhov ntsuas kub ua ntej siv lub tshuab hluav taws xob hluav taws xob hluav taws xob los tiv thaiv qhov kub tsis ua hauj lwm thiab ua rau cov hluav taws xob hluav taws xob hluav taws xob hluav taws xob hluav taws xob.
