... la 150 - 200cm Cbu phong : Khi dung tdm lgp loqi nh6 thi tr6n xa gb c6 d@tc l u phong dd chiu lit6 d6 tdm 1@ Ti& dien ciia cbu phong g6 5x5cml 5x6cm d$t the0 chi6u ddc cua mhi va cach td 50 - ... chju lvc chinh ciia mii ( s ~ d nbc) la dAm, khung n dan, vi kt5o 1.2- Mai cb kkt c i u khbng gian vdi he chju lqc la dAn vi kt50 khbng gian ;v6 m6ng vbm cung, vbm cdu ;b i n ~ g sbng, mat xdp ... bio s v chuyen lvc v i chju tii, dim bio khbng bi bi8n dqng (d8i vdi g6, thkp) dim bio s q co gi5n c h h g mqc nh6t d!nh cho phkp (d8i v6i thkp, bdtbng c8t thhp) s q thay d8i nhiet va t i c dong...