attenuation

1. Therefore, the fog attenuation can be regarded as a multiplicative interference channel of Gauss distribution.
   因此，可以把雾衰减看成一个具有高斯分布的乘性干扰信道。
2. It has a rather high transmission frequency and low attenuation.
   具有较高的传输频率和较低的衰减。
3. Ultrasonic transmission attenuation characteristic in muscular tissue is discussed in this paper.
   探讨超声对肌肉组织超声传输特性。
4. The attenuation peaks of saturated rocks vary with the viscosity of fluid.
   饱和岩石具有衰减峰，其特征随饱和液体黏性而变化。
5. Therefore, there is a perfect compromise between attenuation in stopband and group delay or loss variation in passband.
   因此，它在带外衰减与带内幅度特性和带内群时延特性之间有了一个较好的折中。
6. It is showed by theoretical study and tests that existing fluid in porous medium and its movements are main reasons of dispersion and attenuation of elastic waves.
   理论研究和实验表明，多孔隙介质中流体的存在及其运动是弹性波频散和衰减的主要原因。
7. The Dispersion and Attenuation Measurement System for Single Mode Optical Fiber
   单模光纤的色散和损耗特性测量系统
8. It analyzes breakdown characteristic of the delay-line and estimates height attenuation rate of the pulse transmitted by the delay-line.
   分析了该延时线的耐压特性，并对其传输脉冲幅度衰减率进行了估算。
9. The problems of atmospheric attenuation, light intensity fluctuation and beam alignment in laser transmission have become one of the bottlenecks restricting communication distance and performance.
   激光传输中的大气衰减和光强起伏问题及光束对准问题已经成为限制通信距离和性能的瓶颈之一。
10. When electrical parameter is changd by wet tunnel wall, electromagnetic wave propagation attenuation will vary.
    摘要矿井隧道壁湿润会引起电参数改变，从而使电磁波传播衰减率发生变化。
11. Finally, the L2-disturbance attenuation control of port-controlled time-delay Hamiltonian systems are discussed.
    最后讨论了受控时滞哈密顿系统的L2干扰抑制控制问题。
12. The spectra below indicate the attenuation of each optical fiber type used in our optical fiber assemblies.
    下面的光谱说明了我们的光纤附件中使用的各种光纤类型的衰减情况。
13. Then, the influences of some parameters on phase speed and attenuation are analyzed.
    给出了圆柱管的一些参数对相速度和衰减的影响。
14. In an infrared guidance system, the atmosphere attenuation has an significant influence on infrared detection.
    在红外制导系统中，大气衰减作用对红外探测有重要影响。
15. Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.
    同时，声衰减系数的存在有利于轴向分辨率的提高。
16. Two new medium parameters related to acoustic attenuation are introduced and an acoustic propagation coefficient is defined.
    本文引入两个与声衰减有关的介质参量，定义了声传播系数；
17. Intensity error from the fluctuation of the light source and fiber attenuation are eliminated by intensity compensation.
    实验时采取的参考光强度补偿的措施，消除了光源、光纤衰减等波动对测试结果的影响。
18. Attenuation of seismic waves between such surfaces can be similarly diagnostic.
    在这些界面之间地震波的衰减，同样可以作为一种标志。
19. A Study on the Relations of the Surface Attenuation with the Surface Velocity and Seismic Signal Frequency
    表层吸收衰减与表层速度及地震信号频率关系研究
20. Pulsed echo ultrasonoscope Express the factors resulting in the attenuation of acoustic waves.
    回波反射式超声诊断仪请陈述导致超音波衰减的各项因素。
21. A brief review is given in this paper for sound attenuation in turbid water.
    对混浊水声衰减作了简要的综述。
22. Tracking control and disturbance attenuation is the basic control in actual project.
    跟踪控制和扰动抑制是广泛存在于工程实际中的一类基本控制问题。
23. Noise attenuation of seismic data processing is one of the key questions that can not be ignored.
    噪声衰减是地震资料处理中的关键问题之一。
24. This paper studies the relations between "time-domain attenuation" and sea state or wave height, center frequency or transmitting range.
    研究了浅海声信道“时域衰落”与海况、波高、中心频率和作用距离的关系。
25. The attenuation spectrum of ultrasonic waves through the slurry may provide the information about particle size distribution.
    利用超声衰减谱的测量，可以获得泥沙中颗粒粒度分布信息。
26. Preliminary investigations are made together with site attenuation coefficient, transformation of explosive ene.
    同时结合场地衰减系数、炸药能量转换和减震效应等作了初步探讨。
27. The attenuation measurement error due to RF leakage in a single channel and a dual channel microwave attenuation measurement system is investigated.
    研究了单通道和双通道微波衰减测量系统中的射频泄漏所导致的测量误差。
28. We also investigate the relationship between the total attenuation coefficient and the energy density, pulse duration, and pulse repetition.
    我们研究了衰减系数和能量密度、脉冲宽度及脉冲频率之间的关系。
29. Signal attenuation in the power line environment is often great, and unpredictable.
    信号衰减在输电线环境经常是伟大和变化莫测的。
30. The observational ability and attenuation characteristics of a millimeter-wavelength radar are introduced in this article.
    文中简要介绍了毫米波雷达的探测特点及衰减特性；

noun

1. the property of something that has been weakened or reduced in thickness or density

2. weakening in force or intensity
   1. attenuation in the volume of the sound

   Synonym:    fading