分布最终是衰减的，但是需要很长时间。
和衰减的速率有直接关系。
建立了目标噪声信号传播和衰减的数学模型。
Build target acoustic signal's transmission and attenuation math model.
利用面波衰减的Q模型，反演出近地表的Q值。
Surface wave Q model with attenuation is used to inverse near surface Q value.
采用该模型可以描述合金活化与容 量衰减的全过程。
The model can describe the whole process of activation and degradation.
其结果就是，随着能量的衰减，会议的效率就越来越低。
The net result is that each successive meeting gets less effective as energy wanes.
时间——放射性尘降物的辐射强度衰减很快。
Time - fallout radiation loses its intensity fairly rapidly.
地震波衰减性质的研究是地震学研究的重要课题。
The study of seismic attenuation property is a major subject in seismology.
他的爱情已经衰减了吗？
品牌资产衰减对品牌重生难度存在显著的直接影响。
Moreover, brand equity attenuation also has an obvious effect on brand renaissance difficulty.
海洋声速、声衰减、温度、盐度、悬浮物等都是海水的重要参数。
Ocean sound speed, attenuation, suspended sand size and so on are all important ocean parameters.
衰减系数平均功率随距离的延长而降低的比率。
Attenuation Coefficient The rate at which average power decreases with distance.
本文研究了二层流体系统中波浪的衰减。
In this paper, the wave attenuation in a two-layer fluid system is studied.
获得了影响回旋气幕形成各主要因素的合理参数以及轴向速度衰减规律。
The reasonable parameters of the convolute air cover and axial speed attenuation rule were found.
它基于低能X射线透射的衰减原理。
It is based on the attenuation principle of low energy X-ray transmission.
对混浊水声衰减作了简要的综述。
A brief review is given in this paper for sound attenuation in turbid water.
还研究了桩中弯曲波的衰减。
The attenuation factor of flexural wave in the pile is also analyzed.
谁的速度在慢慢衰减，我应该说是要求？
地震动能量衰减规律的统计分析。
这是可以控制的随距离衰减曲线。
如果没有衰减线将是平的。
这种高功率薄膜衰减器系列具有卓越的高频特性。
This high power thin film attenuator series exhibit excellent high frequency characteristics.
居有较高的传输频率和较低的衰减。
It has a rather high transmission frequency and low attenuation.
本发明涉及用于内燃机的噪音衰减。
The invention relates to a noise attenuation for an internal combustion engine.
这样的能量转化也被看作能量衰减。
Such energy transformation is also known as energy degradation.
经过弯管后水击压力有不同程度的衰减。
没有考虑时间衰减对信任值的影响等。
The impact that trust value changing as time attenuation is not considered.
而衰减项则是填埋体降解速率和时间的函数。
The attenuation factor, is determined by the biodegradation rate and time.
光是以吸收的形式衰减。
光是以吸收的形式衰减。
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