Low sound speed or low-density materials can be used as soft acoustic boundaries in water. potentially as low-frequency underwater sound insulation. This study uses a chiral structure to construct an acoustic metascreen with deep subwavelength thickness. The results show that the transmission coefficient of the metascreen decreases noticeably in the low-frequency range when adjusting ... https://ashleyshomestores.shop/product-category/large-door-bookcase/