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。
结果就是线性衰减。
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.
地震动能量衰减规律的统计分析。
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.
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.
波形控制是一个中频衰减控制。
还研究了桩中弯曲波的衰减。
The attenuation factor of flexural wave in the pile is also analyzed.
镁和镧可减小活性衰减速率。
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.
如果没有衰减线将是平的。
经过弯管后水击压力有不同程度的衰减。
光是以吸收的形式衰减。
他的爱情已经衰减了吗？
衰减从未显得如此美丽。
这种影响的强度随到源的距离指数地衰减。
The strength of the influence declines exponentially with the distance from the source.
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.
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.
但应力路径、应变范围不同其衰减幅度不同。
Finally, different stress paths and strain areas would lead to different attenuation trends.
这种刺激反应，随时间推移而迅速衰减消失。
The irritation reaction will reduce and disappear quickly with the lapse of time.
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.
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.
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.
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.
衰减范围比较大；
衰减范围比较大；
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