RF tswj

RF cov chaw taws teeb tswj tau siv rau ntau thiab ntau lub tshuab tswj, suav nrog TV, suab tshuab, teeb pom kev zoo, thiab lwm yam hauv tsev.

ib puag ncig tswj. Vim cov chaw taws teeb noxa lawv cov teeb liab siv xov tooj cua zaus(RF), lawv tsis tas yuav tsum tau ua hauv kab

ntawm qhov pom ntawm cov cuab yeej lawv tswj.