1) low frequency absorption
低频吸声
2) all bottom,low-frequency sound
低频声<声>
3) Sound absorbing spectrum
吸声频谱
4) low-frequency noise
低频噪声
1.
Impact of indoor virescence on annoyance of indoor low-frequency noise;
室内绿化装饰对低频噪声烦恼度的影响
2.
Theoretical analysis of low-frequency noise radiated from bridge vibrations;
桥梁振动辐射低频噪声评估方法研究
3.
The investigation of relations between low-frequency noise subjective sensation and spectrum characteristics
低频噪声主观感知与频谱特征关系研究
5) Low-frequency sound wave
低频声波
1.
This paper puts forward a method based on online programmable analog device ispPAC10 s deferential amplification and the low-pass filter circuit for realizing the collection of the low-frequency sound wave signal.
提出了基于在线可编程模拟器件ispPAC10差动放大及低通滤波电路来完成低频声波信号的采集。
2.
The low-frequency sound wave is received in the laboratory.
为研究油井管线的声传输过程,测量井底动态参数,根据实际情况设计了一种结构特殊的低频声波换能器。
6) low frequency ultrasound
低频超声
1.
Degradation of azo-dye Acid Red B in aqueous solution by cast iron combined with low frequency ultrasound;
低频超声/内电解法联用处理酸性红B废水
2.
Effects of low frequency ultrasound treatment on the expression of tumor necrosis factor-α in C6 glioma cells;
低频超声对C6胶质瘤细胞TNF-α表达的影响
3.
Objective To investigate the effect of low frequency ultrasound at 1MHz with different power and illumination time on the blood-brain barrier (BBB)and the cortic neurons of rats to seek the optimum sonication condition to open BBB.
目的探讨1MHz低频超声在不同功率、不同照射时间对大鼠脑细胞及血脑屏障的影响,寻求开放血脑屏障的最佳条件。
补充资料：吸声
分子式：
CAS号：
性质：声波通过某种介质或射到某介质表面时，声能减少或转换为其他能量的过程称为吸声。表征材料吸声性能的参数是吸声系数(acoustical absorption coefficient)，即被材料吸收的声能与入射声能的比值。吸声系数大于0.2的材料称为吸声材料(acoustical absorption materials)。常用的吸声材料有玻璃棉、矿渣棉、卡普隆纤维、棉麻等植物纤维、泡沫微孔吸声砖等。
CAS号：
性质：声波通过某种介质或射到某介质表面时，声能减少或转换为其他能量的过程称为吸声。表征材料吸声性能的参数是吸声系数(acoustical absorption coefficient)，即被材料吸收的声能与入射声能的比值。吸声系数大于0.2的材料称为吸声材料(acoustical absorption materials)。常用的吸声材料有玻璃棉、矿渣棉、卡普隆纤维、棉麻等植物纤维、泡沫微孔吸声砖等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条