The development of non-woven sound-absorbing materials, which have better sound absorption properties, can replace wooden materials, inorganic fiber materials currently in use.
开发非织造吸声材料，可以替代目前正在使用的木质材料、无机纤维材料等等，得到吸声性能更优的产品。
The absorption properties of sound-absorbing material and its location in the room is a very important part of room acoustics study. The study methods are measured in the laboratory.
吸声材料的吸声特性及其在室内的位置布置是室内声学研究的一个非常重要的部分，目前多是在实验室中进行测量研究。
Therefore the porous sound-absorbing properties of metal materials is receiving increasing attention.
因此多孔金属材料的吸声性能越来越受到人们的关注。
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