| 1. | Equivalent specific acoustic resistance of sound absorbing materials
吸声材料的当量声阻率 |
| 2. | Design of multi - cavity mold for the rubber dust cover
轨道交通噪声控制结构设计及吸声材料研究 |
| 3. | The current status on the research and its development of sound - absorbing materials
吸声材料研究现状与展望 |
| 4. | Advances in sound absorption polymers
高分子吸声材料 |
| 5. | Design on orbit traffic sound control structure and development on sound absorption material
橡塑型泡沫吸声材料的研究 |
| 6. | Influence of the structural form of sound absorbing material on the behavior of sound absorption
吸声材料构造形式对吸声效果的影响 |
| 7. | Inside wall of pump chamber is adhibited with sound absorption material , equipped with double layer sound isolation door
水泵房等房间内壁贴吸声材料。采用双层隔音门。 |
| 8. | A new type of porous sound absorbing material was made from super - strength gypsum and glass fiber
摘要以高强石膏为胶凝材料，内掺玻璃纤维，制备出一种新型多孔吸声材料。 |
| 9. | It is effective that railroad line and structure of railway carriage are improved on and acoustical absorption and sound insulation materials are selected reasonably
改进线路状况和车辆结构、选用隔声、吸声效果良好的隔声吸声材料是行之有效的降噪措施。 |
| 10. | A new type of sound absorbing materials mainly made from low alkaline cement and expanding pearlite has been investigated on the basis of sound absorption principle
摘要以低?水泥和膨胀珍珠岩为主要原料，辅之以分散性良好的增强剂聚丙烯纤维，研制出一种新型吸声材料。 |
