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- acoustical absorption factor 吸声系数
- The absorption factor and absorption rate of nitrogen were analyzed. 分析了影响氮的吸收因素和氮的吸收率。
- AB-8 resin was selected during the experiment. After repeating 20 times,the absorption factor had only a loss of 1.45%. AB-8树脂重复使用20次后吸附率仅降低1.;45%25;
- The sound absorptivity of Low Resilience PU Foam was discussed,and got the influencing degree of each influencing factor to its acoustical absorptivity. 对慢回弹聚氨酯泡沫的吸声性能进行了探讨,分析出各影响因素对其吸声性能的影响程度。
- The average particle diameter of CSF was smaller than those of SRF and HAF, and its specific surface area and DBP absorption factor was higher obviously than those of the latters. CSF炭黑的平均粒径小于SRF和HAF,但其表面积和DBP吸油值明显高于后者。 CSF炭黑对天然橡胶、丁苯橡胶、丁腈橡胶、氯丁橡胶的补强效果与SRF相当,其配合量应小于50份。
- 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。
- In this article,the courses of absorption and excretion of alcohol through bodies is simplified to general house models,and the conceptions of absorption factor and excretion factor are defined. 把人体对酒精的吸收、排放简化为一般的房室模型;提出了吸收因子、消除因子的概念.
- acoustical absorption coefficient 声吸收系数
- An Empirical Formula of Mass Absorption Factor 质量吸收因子的经验公式
- 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 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。
- That's a factor which we must not neglect. 这是我们不应忽视的一个因素。
- I factor ed my uncle's estate for three years. 我代管我叔父的财产已有三年了。
- Fibers and Nonwovens Composite Material for Acoustical Absorption and Sound Insulation 吸声隔音用纤维与非织造布复合材料
- A medicine or an agent that induces absorption. 吸收剂导致吸收的药品或药剂
- Soil water not available for absorption by plants. 无效水植物不能吸取的土壤水
- Acoustic absorption coefficient of wood 木材吸音系数
- His experience in social work is a plus factor. 他在社会福利工作方面的经验是一个有利因素。
- acoustic absorption characteristics 吸声特性