您要查找的是不是:
- INFLUENCE OF THE DENSITY ON THE SOUND ABSORBING PROPERTY AND THE TENSILE STRENGTH OF THE FOAMED ALUMINUM 密度对泡沫铝吸声性能和抗拉强度的影响
- The Sound Absorbing Property of Open-pore Foamed Aluminum Made by Vacuum Infiltration 真空渗流法制备的通孔泡沫铝的吸声性能
- Experimental Study on Sound Absorbing Properties of Polyester Fiber Board 聚酯纤维装饰板吸声性能的实验研究
- Influence of Pore Structures on the Underwater Sound Absorbing Properties of Open-pore Foamed Aluminum 孔结构对通孔泡沫铝水声吸声性能的影响
- The Fabrication of Porous Aluminum Alloys and the Testing of the Sound Absorbent Property 多孔泡沫铝的制备及其吸声性能测定
- THE WAVE ABSORBING PROPERTY TESTING AND ANALYSIS OF THE MMW COATING STEALTH MATERIAL ? 毫米波涂层隐身材料吸波性能的测试研究
- 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。
- The EMW absorbing property of the ferrite with some rare earth dopants is well enhanced. 将一定量的稀土元素掺杂到铁(锰)氧体中后,显著地改善了铁(锰)氧体的吸波性能。
- A new sound absorbing foamed compound mainly made from PVC resin,EPR and rockwool has been investigated by foaming process. 以PVC树脂、EPR和岩棉为主要原材料用发泡方法制成了一种中低频吸声性能优良的新型泡沫吸声材料。
- This paper introduces the foamed aluminum board with a back membrane structure, which effectively improves the low frequency absorbing property. 文章介绍采用在泡沫铝板背面复合薄膜形成复合板吸声结构,可使其低频吸声性能获得较大幅度提升。
- A new sound absorbing material that is good in sound absorbing at the low frequency and high frequency is made from PVC and rockwool in this paper. 利用PVC和无机物等研制了一种性能优良的吸声材料。
- Thecapability of preventing burning, self-extinguishing, heat-insulation , smoke suppressing, sound absorbing and shockproof.. 具有阻燃、自熄、隔热、消烟、吸音、抗震等性能。
- 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?A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。
- This compound materials used in absorbing material is with sound absorbing function and light quality, wide band, good compatibility and strong inoxidizability. 这种复合材料用于吸波材料,它不仅具备良好的吸波功能,还兼备质量轻、宽频带、兼容性好和耐腐蚀性强等优点。
- The acoustical properties of compound impedance in a double layer sound absorbing structure is studied,Base on that,A model is constructed to optimize the double layer structure. 研究了由穿孔板及吸声材料构成的双层阻抗复合吸声结构,在此基础上建立了其声学性能模型,并通过建立优化数字模型,对其结构的各个几何参数和物理参数进行了优化设计。
- This paper reports the synthetic method of containing Resin-Bibenzoyl, methan,discusses the absorbing property of Resin on uranium and the corditions for enrichment and sepa-ration of trace uranium. 本文介绍了二苯甲酰甲烷萃淋树酯的合成方法,讨论了该树酯对铀的吸附性能和分离富集铀的条件。
- The two rooms both adopted American Milliken carpet and high-class beech surface sound absorbing wall, which can ensure the comfort and privacy of the meeting. 两处会场均选用了美国Milliken地毯和高档枫木饰面吸音墙面,可保证会谈的舒适及私密。
- Encroaching property by using the electronic error is misdemeanor, convicted by offence of absorbing property helps the balance between the criminal, responsibility and the punishment. 利用电子错误侵占财产的行为应属轻罪,以侵占罪定性有利于罪责刑的平衡。
- The absorbing properties are hardly changed when further coated with the infrared camouflage coatings. 雷达吸波涂层与可见光、红外隐身涂层复合后,其吸波性能基本保持不变。
- The microwave absorbing properties of SiC fiber composites with different fiber arr engement are studied. 研究微量碳化硅纤维 /环氧树脂复合吸波材料不同排布的吸波性能。