“sound absorbing material”可以造什么句,sound absorbing material造句
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The nonwoven fabric (20) of the sound absorbing material (10) as vehicle exterior equipment may consist of two types of nonwoven fabrics (22,24) superimposed on each other.
A new type of porous sound absorbing material was made from super-strength gypsum and glass fiber.
For example, specification will describe that ducts may be made of galvanized-iron. When galvanized-iron is used, it may be lined with sound absorbing material, to reduce noise from movement of air.