词汇	back-draft damper
释义	back-draft damper 反向通风调节风门
随便看	dispersion of colors dispersion of colours dispersion of complex components dispersion of conductor dispersion of cue validities dispersion of diamond dispersion of difference scheme dispersion of distribution dispersion of effluents from stack dispersion of elastic axes dispersion of element dispersion of ellipsoid axes dispersion of equity Dispersion of falling point dispersion of fire Dispersion of forces led up to the defeat Dispersion of fuel dispersion of fuze actuation angle dispersion of glass dispersion of grouping dispersion of gyration surface dispersion of indications dispersion of industry dispersion of isogyre dispersion of liability for guilt