衰减

Besides including two 31-band channels of 1/3-octave equalization, the 231 also offers ±6 or ±12 dB boost/cut range; XLR, 20mm faders and 1/4 inputs; nonconductive nylon sliders; and an intuitive user interface with comprehensive output and gain reduction metering.

除了包括两个31段均衡的1/3-octave渠道，还提供231 ± 6或± 12分贝提升/衰减范围；的XLR，20毫米推子和1 / 4的投入；不导电尼龙滑块，以及直观的用户界面全面的输出和增益衰减计量。

In this paper, prediction of the back surface reflection, which is based on attenuation and phase velocity dispersion estimation method, in highly attenuating plastic (polyvinylidene fluoride—PVDF) has been described.

在本文中，预测背部表面反射，这是基于衰减和相速度色散估算方法，在高衰减塑料（聚偏氟乙烯-聚偏氟乙烯）已被描述。

Succinylcholine-inducedneuromuscular block had the following characteristics: 1 twitchaugmentation before twitch depression, which was seen more frequentlyin patients given smaller doses (0.1 and 0.3 mg/kg) than inthose given larger doses (0.5–1.0 mg/kg); 2 TOF fadeduring onset and recovery of the block; 3 tetanic fade; and4 and posttetanic potentiation.

琥珀胆碱诱导的神经肌肉阻滞具有以下特点：1）抽搐增强先于抽搐抑制，小剂量（0.1~0.3mg/kg ）比大剂量（0.5~1.0mg/kg ）更明显；2） TOF 衰减贯穿于阻滞的开始和恢复；3）强直衰减；4）强直后易化。

In conventional seismic data processing, the earth is regarded as prefectly elastic medium.However,the pores of stratum rock often contain fluid. So, when the seismic wave propagates in it, there are energy attenuation and phase distortion related to frequency. Moreover, the attenuation, scattering,and dispersion of high-frequency components are far higher than that of low-frequency components.

常规地震资料处理中把大地看成是完全弹性介质，实际上，地层岩石孔隙中常常含有流体，当地震波在其中传播时要发生与频率相关的能量衰减和相位畸变，且高频成分的衰减、散射和弥散远高于低频成分。

The effect of anisotropy vary with the azimuth of fracture, especially a couple of level waves which have different schismatical degrees because of the difference of azimuth and velocity difference.

研究表明：①裂隙密度增大，各向异性效应增强，三类波的速度减小，衰减系数增大，特别是P波的衰减系数十分敏感，因此，可以利用振幅、速度等特征确定裂隙发育带。

Experiments are developed on different aspects, including the thickness of aluminum filter, choosing of the unattenuated data or not, characteristics of X-ray spectra, sensitivities to errors of attenuation data. Conclusion is that the iteration method is the best estimation technique.

以铝板作为滤波器材料，论文在滤波器厚度（包括最大厚度和最小厚度的选择）、未衰减数据的选取与舍弃、韧致辐射谱和包含特性辐射的光谱、对衰减误差的敏感性等多个层面进行仿真实验，比较分析了矩阵法和迭代法的优缺点，认为迭代法是进行光谱估计的最好方法。

We review the dark decay of the electronic holographic phase grating before thermal fixing, and deduce the general analytic expression of the lifetime of thermal-fixed ionic holograms in the photorefractive crystal, by means of analogizing.

通过类比的方法，由热固定前的电子体全息相位栅的暗衰减得出了热固定后离子体全息光栅的衰减规律及其寿命的一般解析表达式。

After design the model of the attenuator,we can simulate the attenuating with BeamPROP.

设计出此衰减器的模型后，并利用BeamPROP软件进行衰减仿真。

In this paper, the level of resolution reduction caused by Earth′s absorption wane and the compensation effect of the spectral equilibrating filter to the high frequency signal are studied by the method of computer...

文章以频谱均衡滤波器的原理和地层吸收衰减特性为基础，用计算机模拟的方法研究地层吸收衰减使分辨率降低的程度和频谱均衡滤波器对分辨率的补偿效果，给出了较好的频谱均衡滤波器的设计方案

ABSTRACT A least square algorithm immunizing from decaying DC component is proposed in this paper, which is based on the numeral process of filtering results of least square.

该方法通过对最小二乘算法的滤波结果进行处理，完全消除了衰减非周期分量的影响，并与衰减时间常数Td无关。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。