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- Micro-perforated sound absorption structures proposed by Professor Maa Dah-You have got abroad application on noise reductions and isolations in air. 摘要马大猷教授提出的微穿孔板吸声结构在空气噪声降低和隔离方面得到了广泛的应用,但未见水下应用的相关研究和报道。
- In this paper, turnable sound absorption structure is used to makethe reverberation time modulatable so as to meet the requirements of broadcasting. 在黑龙江省财政专科学校“电教中心”的改建工程中,我们采用了墙面可翻转吸声结构,从而使房间混响时间可调,能满足多方面演播需要。
- Perforation board resonance sound absorption structure 穿孔板共振吸声结构
- sound absorption structures 吸声结构
- Numerical and emulational results of sound absorption coefficient from some typical structures are presented. 给出了一些典型结构的吸声系数的仿真结果。
- Sound absorption structure 吸声结构
- Based on the previous study of non-homogeneous compound structures and adopted the method of delamination, the sound absorption performance of non-homogenous compound structures are studied. 摘要在非均匀复合吸声结构研究的基础上,应用分层分析方法,研究了非均匀波导的吸声性能。
- It indicates that straw-based wallboard has characteristics of low density, good heat insulation and sound absorption. 笔者综述了3种墙体材料生产工艺、产品性能及其用途的研究现状和发展趋势。
- Horniness beaverboard sound absorption, waterproof properties is good, hard usage, construction is convenient. 硬质纤维板吸声、防水性能良好,坚固耐用,施工方便。
- Its good characteristics include low cost, high durability and good property of sound absorption. 它具有成本低、耐久性高、吸声性能好的特点。
- The sound absorption coefficient of the material was tested by standing wave tube method. 采用驻波管法测试材料的吸声系数。
- The sound absorption property of eucalypt wood of 0.5 cm in thickness is much better than that of 1.0 cm in thickness. 0.;5厘米厚的锯材的吸声性能好于1
- In order to overcome the overlapped absorption structures in differential optical absorption spectroscopy (DOAS), a method of spectrum correction based on Kalman filtering is developed. 摘要针对差分光学吸收光谱(DOAS)技术中气体吸收结构的重叠问题,提出利用卡尔曼滤波进行光谱校正。
- The sound absorption coefficient of three kinds OSB wallboard were tested by the stationary wave method. 采用驻波管法测定了3种定向结构板(OSB)复合墙体的吸声系数;
- In the light stamen and pistil heart the flow butterfly sucks the sound absorption. (只要意思接近)翻译:“挥去快乐的天堂时光,而坠入诱惑的梦想世界。
- The function of the curtain is sound absorption, sound insulation, adiabatic above all, prevent cold, adjust the light. 窗帘的功能首先是吸声、隔音、隔热、防寒、调节光线等。
- Sound absorption materials is always used in controlling reverberation time in the acousti-cal design of studios. 对演播厅混响时间的控制,在声学设计上往往通过安装吸声材料来实现。
- The aim was to research the sound absorption properties of graded polyurethanes at different incident angles. 主要研究梯度聚氨酯在全入射角下的吸声性能。
- Report on the Determination of Sound Absorption Coefficients of a Renhurst Rippletone Ceiling System in a Reverberation Room. 怡谱佳吊顶声学混响室法吸音系数报告。
- 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。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries