美国科学家最近研制出一种新型防噪声建材 ,用这种建材建成的房子可以隔音 ,让家庭不受外界干扰。这种新型防噪声建材是由许多空心塑料小球组成的。这些小球带有很多极细的小孔 ,能够消除从洗碗机到各种风扇所发出的任何噪声。与传统隔音材料 ,如泡沫玻璃和玻璃纤维等不同的是 US scientists recently developed a new type of noise-proof building materials, houses built with this kind of building material can be soundproof, so that families from outside interference. This new anti-noise building material is composed of many hollow plastic pellets. These tiny balls have many tiny holes that eliminate any noise from the dishwasher to the various fans. Unlike traditional soundproofing materials such as foam glass and fiberglass, the difference is