合成纤维及其制品(无纺布，纺织品，地毯等)既是高档装饰材料，作为多孔性材料又具有优良的吸声特性。

The product made of synthetic fiber such as nonwoven web, fabric and carpet as a good porous material will be used in buildings as both ornament and sound absorption material.

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本发明描述了一种通过超声波焊接工艺形成的磨料制品，该磨料制品具有多孔的涂覆磨料构件、过滤介质和附连界面构件。

An abrasive article having an apertured coated abrasive member, filter media, and an attachment interface member is formed by an ultrasonic welding process.

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