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- acoustic absorption loss [电] 声能吸收损失
- Absorption loss vs. Frequency for two thicknesses of copper and steel. 两种厚度的铜和钢在不同频率下对磁场的衰减特性。
- acoustical absorption loss 声吸收损耗
- A unit of acoustic absorption equivalent to the absorption by one square foot of a surface that absorbs all incident sound. 赛(宾):吸声计算单位,等于一平方英寸的表面所吸收的全部外来声音的吸收量
- Adopt the classics acoustic absorption theory that Rayleigh founds, establishing acoustic absorption theory model by the orderliness that the change sound impedance. 采用瑞利创立的经典吸声理论,通过声阻抗率的变化规律建立圆管吸声理论模型。
- The SCF absorption loss spectra, scattering loss spectra, and scattering position spectra can be measured. 利用本装置可获得单晶光纤的吸收光谱,透过率谱,散射光谱以及散射位置谱。
- Because the bridge and flocculation of the large molecules of HPAM in micelle and oil sand, the absorption loss of oleic acid and sodium oleate will increase further. HPAM大分子在胶束和油砂粒子表面上的架桥絮凝作用,使油酸-油酸钠的吸附损失量进一步增大。
- The problems of high reflection loss and low absorption loss,poor dispersion and poor compatibility of the present fillers are discussed,and the solution is put forward. 针对目前该类型填料高反射低吸收、分散性和亲和性等方面的不足,提出了解决方案。
- The noise-deadening property was also analyzed and pointed that it was a new composite material which has much high performance such as excellent noise-deadening and acoustic absorption etc. 选择聚丙烯为纤维原料采用纺丝成网法制成吸声非织造布,以铜、铁粉末为主要隔声材料采用挤出成型工艺制成隔声片材,经化学粘合复合工艺研制出非织造降噪复合材料。
- The problems of high reflection loss and low absorption loss, poor dispersion and poor compatibility of the present fillers are discussed, and the solution is put forward. 针对目前该类型填料高反射低吸收、分散性和亲和性等方面的不足,提出了解决方案。
- Based on the viscosity acoustic absorption theory, Rock material is natural low-pass filter of acoustical wave. 摘要声波在岩石材料中传播时会发生差异衰减现象。
- The initial low IFT is very advantageous to enhance oil recoveries, petroleum carboxylat of compound surfactant play the sacrificial agent role in the process of absorption and reduced the sulphonate absorption loss. 复配表面活性剂吸附过程中羧酸盐起到了牺牲剂作用,降低了磺酸盆的吸附损失,复配体系的这些特点对提高驱油效率很有利。
- The mechanism of sudden change absorption loss in a sea- led transverse-flow CO_2 laser has been investigated. It indicates that the sudden change absorption of intracavity is caused by impurity gases released in operating laser. 研究了闭环横流CO_2激光器中突变吸收损耗的机理,指出器件运转时释放的杂气是引起突变吸收的原因。
- Acoustic absorption coefficient of wood 木材吸音系数
- acoustic absorption characteristics 吸声特性
- underwater acoustic absorption materials 水声吸声材料
- porous acoustic absorption material 多孔性声吸收材料
- Not all of the photons will reach the focus of the telescope because of reflection and absorption losses from the components in the optical train. 由于光学系统部件所引起的反射和吸收的损失,不是所有的光子都能到达望远镜的焦点。
- The results showed that with increasing the PMN content, the piezoelectric constant, dielectric constant and acoustic absorptivity of the composite increase. 结果表明,随着压电陶瓷体积用量的增加,材料的压电常数、介电常数和吸声系数均增大。
- An LSE algorithm for troposphere absorption loss 雷达电磁波大气吸收损失最小二乘拟合算法