A high density MDF cabinet with walls of varying thickness is heavily damped with bitumen and lined with anechoic grade foam. 高密度的MDF箱体四周配以不同厚度的高阻尼沥青和内衬消声泡沫。
anechoic
[ adj ] not having or producing echoes; sound-absorbent <adj.all> an anechoic chamber