织物对声波的衰减作用具有频率选择性。
The decline effect of fabric on sound wave has the chractaristic of frequency alternative.
然而有的时候，可能需要使用外部电路来增加衰减作用。
However, it may be necessary to increase the damping with an external circuit.
隔振沟对振动加速度的衰减作用随载荷强度的增加而增强。
The attenuation function of the isolation trench to the shock vibration is more effective with increase in the intensity of the blast loading.
在红外制导系统中，大气衰减作用对红外探测有重要影响。
In an infrared guidance system, the atmosphere attenuation has an significant influence on infrared detection.
当质量参数超出某有效区间时，系统将失去对高阶模态响应的衰减作用。
The decrement of higher modal response of the rotor system is lost when damper mass-factor exceeds a limiting range.
这种球体对入射光存在折射、衍射、反射、吸收和杂质对入射光波的衰减作用等影响。
The sphere affects the incident by the refraction, diffraction, reflection, absorption and attenuation of impurity.
通过数值结果对纵、横波之间的耦合程度以及介质的不均匀性对波的衰减作用进行了讨论。
A discussion is made on the coupling intensity between the compressional and shear waves and the amplitude attenuation resulting from the inhomogeneity of the medium.
水雾系统对红外光谱有着强烈的衰减作用，因此在军事目标的各种制导对抗中被予以高度的关注。
Water fogs system can mightily attenuate the infrared spectrum, so more and more attention has been paid to this problem in military.
结果表明：泡沫夹层对爆炸冲击波具有很好的衰减作用，且这种衰减作用随输入压力的增大而增大。
Results show that the mezzanine foam has a very good blast-wave attenuation function, and this attenuation function increases with the input pressure force increase.
分析了动力试桩中，因土阻力和桩身材料阻尼引起的应力波衰减作用对桩身的完整性检测精度的影响。
It also analyses the influence of attenuation of stress wave cased by the soil resistance and the damp of pile shaft material in dynamic pile test on the precision of pile shaft integrity test.
大气环境对电磁波的吸收衰减作用使雷达的作用距离减小，大气异常折射现象使雷达的作用距离增大或减小。
Atmosphere absorbs the electromagnetic wave so that the radar detection distance be reduced, and the atmospheric unusual refraction changes the radar detection distance too.
这种疗法的的副作用是毁灭性的，表现为体质虚弱，疲乏无力，和生命衰减。
The side effects of this treatment can be devastating in terms of weakness, fatigue and a decrease in quality of life.
在迁移和人口出生率递减的共同作用下，该地区的适龄工作者从1990年10万衰减到2008年的87400人。
The prefecture’s working-age population has shrunk from over 1m in 1990 to 874, 000 in 2008, a result both of the exodus and a declining birth rate.
DCMU作用后叶片DF衰减动力学曲线表明在快相部分有明显上升趋势，而慢相部分出现下降。
The fast phase of DF decay curve of leaves obviously rise after DCMU treatment, while the relative slow phase declined.
根据分析所得到的各种衰减量，可以推导出工作于此波段的近程雷达受作用距离的影响及抗干扰性能。
Based on the all attenuation, we can find the short range radar worked in this band is affected by action distance and interfere.
膨胀石墨蠕虫对毫米波的衰减为散射和吸收作用的综合结果。
The millimeter wave attenuation of expanded graphite is a comprehensive actions of scattering and absorption.
于是我们提出把极限衰减曲线作为检验观测脉冲是否是多普勒效应作用下的结果的一个标准。
We accordingly propose to take the marginal decay curve (whose function is simple) as a criterion to check if an observed pulse could be taken as a candidate suffered from the Doppler effect.
电流衰减指数(充电接受率)对快速充电起着决定性的作用。
Current decay index plays a decisive role in the rapid charge.
本文以菠菜叶片作为实验材料，从DF衰减动力学及其总强度的变化研究了DCMU对植物光合作用的影响。
In this paper, with spinach as a testing material, we studied the effects of DCMU on photosynthesis of plant from the characteristics of DF decay kinetic curve and its total intensity.
研究结果表明，厚壁筒自增强残余应力在循环载荷的作用下，残余应力衰减达到近30%。
The result showed that the attenuation of residual stress of autofrettaged thick-walled cylinder reached about 30% under cycle loading.
由于化学转换和衰减的作用，初生污染物随着下风距离而较快地减少，特别是在10公里以后的中距离上更加明显；
As a result of chemical conversion and decay, the primary pollutant decreases with the downwind distance more rapidly, especially as the mesoscale distance further than 10 km.
分析认为，氧化锌晶须渗入在复材中将形成微观的阻尼结构，起到降低固有振动频率和增大衰减率的作用。
By the analysis penetration of ZnOw into the compound board will compose a microscopic damping structure, which can reduce the vibration frequency and increase the damping ratio.
无论它们处于休眠、衰减、转化还是扩张状态，是不觉知使得(五个原因)中的其它几项得以作用。
Whether they be in the states of dormancy, attenuation, alteration or expansion, it is through lack of awareness that the other causes of misery are able to operate.
并给出了随着基坑开挖的卸压作用，桩上受到的水平冻胀力呈现减小趋势，最大衰减率达40%。
The horizontal frost-heaving force is attenuated in the process of excavation with the maximum attenuation rate being 40 percent.
分析了腐蚀环境对结构抗力的影响、抗力衰减模型、地震危险性、地震对结构的作用。
Influence of corrosive environment on structural resistance, resistance decrease model, seismic risk and seismic effect on structures are analyzed.
知识生产的局部溢出是存在的； 邻近地区的R&D的努力对当地知识生产的影响作用是随着距离而衰减的。
Moreover, the production of knowledge by regions seems to be also affected by spatial spillovers due to R&D activity performed in other regions.
单纯的PEG400仅对去角质皮肤有一定的光透明效果，并且所导致的皮肤衰减系数的降低仅为混合液作用后的2/3。
Single PEG400 can only do some effect on the sample without SC, and the change in attenuation coefficient of samples is just 2/3 of that treated by mixed solution.
测量了其激发、发射光谱及余辉衰减曲线。 分析了掺杂稀土离子对长余辉发光的作用。
The excitation, photoluminescence and afterglow spectra as well as the curve of afterglow decay were investigated.
针对衰减曲线的不同变化特征，分析了产生的原因、条件以及主要参数之间的影响作用。
In accordance with the different change features of the attenuation curves, the authors analyze the cause, condition and the effect among main parameters.
对比论述了后生动物的演化和环境因素在叠层石的形成与衰减的过程中谁占主导作用。
At last, this paper discusses what is the dominant function in the formation and decline of stromatolites beween the evolution of metazoans and changing environments.
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