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- In this paper, C language is made use of to calculate the concentration of the composite gases component according to opto acoustic effect and opto acoustic spectrum of gases. 文章根据气体的光声效应 ,利用气体的光声光谱对混合气体各组份的浓度用C语言编程进行计算
- 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
- With FTIR spectroscopy and absorption cell infrared transmittance of CH4 has been measured. 对CH_4红外透过率的测定及计算作了介绍。 测定是在实验室内进行的,主要设备是60SXR FTIR分光计及可变光程吸收池;
- 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。
- 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 preliminary result of the frequency stabilization of an InGaAsP semiconductor laser using the optogalvanic effect of a gas absorption cell is reported. The optogalvanic signal of the discharge absorption cell is used as a frequency standard. 采用光吸收作用使放电气体吸收池电流改变，即“光电压”信号作为频率标准，对InGaAsP长波长半导体激光器进行稳频。
- The light shift effect in the new assembly was independent on the parameters of the absorption cell, thus could be minimized by optimizing only the parameters of the filter cell so that the parameter optimizing process was greatly simplified. 它不依赖于吸收泡参数,可以通过改变滤光泡参数进行调整,从而简化了参数优化过程。
- 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
- Absorption cells in the gut lumen absorb 33-MER peptides and pass them into the tissues of the lamina propria. 除考虑麦胶对肠粘膜的直接毒性外，还认为有免疫机制参与。
- porous acoustic absorption material 多孔性声吸收材料
- long tube absorption cell method 长吸收管法
- 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。
- THE ACOUSTIC ABSORPTION IN LAYERED POLYMER MATERIALS 分层高分子介质中的声吸收
- A storage cell in some amorphous memory devices. 某些非晶体存储器中的一个存储单元。
- She was found prostrate on the floor of the cell. 有人发现她趴在小屋的地板上。
- The prisoner rapped out a message on the cell wall. 那囚犯敲打囚室的墙来传达讯息。
- Keywords highway;bituminous pavement;acoustic absorpt;noise reducing; 关键词道路;沥青路面;吸音;降噪;
