attenuation ratio
英 [əˌtenjʊˈeɪʃn ˈreɪʃiəʊ]
美 [əˌtenjʊˈeɪʃn ˈreɪʃioʊ]
衰减比
双语例句
- How to determine dynamic parameters of dam materials ( including maximum dynamic shear modulus, the attenuation regularity of modulus ratio with dynamic strain and the growth regularity of damping ratio with dynamic strain) and liquefaction resistance are keys to realize liquefaction evaluation.
坝壳料动力参数（包括最大动剪模量、模量比随动应变衰减以及阻尼比随动应变增长的规律）的确定以及抗液化强度的确定是实现液化评估的关键。 - Microwave attenuation technique is used to measure water phase fraction. Capacitance transducer is used to measure oil/ water ratio.
微波衰减测量技术被用来测量三相流总流的含水量，电容传感器测出其中的油、水比率。 - The characteristics of sensor signals are extracted using Hilbert-Huang transform and Hilbert spectrum. Based on the Hilbert spectrum, two criteria for the energy attenuation ratio and the damage sensitivity of Lamb wave propagating in the structure are defined and used to optimize the excitation signal experimentally.
利用Hilbert-Huang变换及Hilbert谱提取传感器信号特征，提出了Lamb波信号在结构中传播时的能量衰减率和损伤敏感度两个考察指标，并据此对激励信号进行优化。 - On the basis of analyzing synthetically current measure methods of milk components, we put forward a method to measure milk component by combining ultrasonic velocity, attenuation coefficient and conductance ratio, and expounded the composing of instrument in detail.
在综合分析当前牛乳成分检测方法的基础上，提出一种应用超声波声速、衰减系数和电导率相结合，检测牛乳主要成分浓度的方法，详细阐述了基于该方法的仪器构成。 - Attenuation ratio of train waves before and after a great earthquake
大震前后地震波列的衰减速率特征 - Study of Au to-Attenuation System for Measuring Extinction Ratio
测试消光比的衰减系统研究 - The attenuation at dryness and saturation and the attenuation law from dryness to saturation are the same as those by spectral ratio method, but amplitude of the peak attenuation is different.
此方法求出的Q和频谱比法求出的Q在干燥或饱水时基本相同，随饱和度的变化规律也基本一致，但衰减峰的大小有差异。 - A new model is developed for the computation of rain specific attenuation from rain volume reflectivity, for frequencies from 1 GHz to 100 GHz, and the radar equation, maximum range and signal-to-noise ratio and signal-to-clutter ratio in rain have also been analyzed herein.
文中拟合得到了由降雨的雷达体反射率反演雨衰减率的公式，适用频率1~100GHz，并且给出了降雨存在时的雷达方程、最大作用距离以及雷达接收信号信噪比与信杂比的变化。 - Reasonably chose geophone planting coupling mode and geophone array parameters by researching the rules of stratum attenuation and absorption, then improved resolution and S/ N ratio.
通过研究地层吸收和衰减规律，合理选择检波器的埋置方式和组合参数，以提高记录的分辨率和信噪比； - The experimental result of ultrasonic attenuation using amplitude spectral ratio for the process of rock dilatancy shows there are three processes in that the cracking of rock, crack stability spread, crack instability spread and macroscopical cracking.
利用振幅谱比法对砂岩扩容过程中超声波衰减的实验结果进行分析表明：岩石存在裂纹稳定性传播与裂纹的非稳定性传播和宏观破裂过程；