The circuits can be realized easily and used conveniently and have a wide attenuation range. And the signal attenuation control can be automatized.
这两种电路容易实现，使用简便，具有较大的衰减范围，实现了信号衰减控制自动化。
Some papers indicate that using high attenuation rate neutral filter can expand the measuring range of CCD.
多篇文献提出在CCD前加高衰减率的中性滤光片来扩大测温范围。
The effects of load in certain range were to restrain the swelling-shrinkage deformation and the attenuation of shear strength.
荷载对干湿循环过程中膨胀土的胀缩幅度及强度衰减具有明显抑制作用。
Results: High quality VR-3D images will be obtained by selecting 2 or 3 objects, appropriate range of attenuation value and opacity %.
结果：选择2或3个目标、合适的衰减值及不透明度的限值可获得良好的VR立体成像。
Based on the all attenuation, we can find the short range radar worked in this band is affected by action distance and interfere.
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。
These high frequencies and the accompanying formation attenuation severely limit the range of investigation.
高频率和随之而来的地层衰减严重制约了测量范围。
L. f. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff.
在密闭型耳罩中，利用有源降噪技术可以较好地衰减低频噪声以使整个可听声频率范围内获得良好的衰减特性。
The attenuation coefficient shows approximately linear behaviour with frequency over the frequency range used, and the attenuation slope increases with the void content.
结果表明：超声衰减系数与频率之间存在线性关系，而且其斜率随孔隙率的增大而增大。
The viscosity coefficient of pore fluid in saturated sandstone has an obvious effect on the attenuation, modulus, and velocity dispersion in low frequency range.
饱和砂岩中扎隙液体的粘滞系数对饱和砂岩的衰减、模量和速度色散的影响在较低频段是明显的。
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。
The change of the relationship between the laser attenuation and soot concentrations within a particular detection range has been given.
给出了一定探测距离下，激光的衰减与烟尘浓度的变化关系。
The change of the relationship between the laser attenuation and soot concentrations within a particular detection range has been given.
给出了一定探测距离下，激光的衰减与烟尘浓度的变化关系。
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