1) mass attenuation coefficient
质量衰减系数
1.
In this paper,firstly,beginning from computing angle of mass attenuation coefficient of mixture.
本文从混合体的质量衰减系数的计算角度出发,分析了质量衰减系数的计算原理,得到了它的另一个等价表示;并推导出材料服役环境下,只包含单杂质的情况时,微裂纹群的出现所带来的裂纹缺陷体积百分数、密度变化与CT图像值之间的关系式,最后得到了裂纹缺陷体积百分数与损伤变量的关系式,为后期利用CT进行材料疲劳寿命分析奠定了理论基础。
2.
The mass attenuation coefficients of particleboards were analysed when they were penetrated by x-rays of 20～100keV using x-ray absorptiometry,if x-ray among 20～50keV was used in measuring the vertical density profile of wood-based panel samples,whose density was among 0.
通过计算分析刨花板对20～100keV的X射线的质量衰减系数得出,用X射线吸收法检测密度在0。
2) Mass attenuation coefficients
质量衰减系数
1.
Calculation of narrow beam γ ray mass attenuation coefficients of absorbing medium by Monte Carlo method;
蒙特卡罗方法计算介质对窄束γ射线的质量衰减系数
3) γ ray mass attenuation coefficient
γ射线质量衰减系数
1.
The γ ray mass attenuation coefficients of several marine sediments were calculated .
计算了各种海洋沉积物的γ射线质量衰减系数。
4) decay modular
衰减系数，衰减模量
5) energy attenuation factor
能量衰减系数
1.
In this paper,the problem of zero slump concrete vibration attenuation rules and energy attenuation factor β and continuation time required in the process of concrete vibrating and pressing and acting radial of vibrator are analysed and discussed through practical measuring of zero slump concrete vibration acceleration and time curve in the process of working.
文章通过对浇筑过程中的零坍落度混凝土的振动加速度和时程曲线的实地测量，分析并论述了零坍落度混凝土的振动衰减规律、能量衰减系数β、混凝土振捣密实所需要的持续时间及振捣器的作用半径等问题。
6) attenuation coefficient
衰减系数
1.
Measuring the ultrasonic attenuation coefficient of flyash scale in the transport pipeline;
输灰管灰垢声衰减系数的测定
2.
Experimental study on integrated attenuation coefficient of organic contaminant (COD_(Cr)) in upper reaches of Hanjiang River;
汉江上游有机污染物COD_(Cr)综合衰减系数的试验确定
3.
Experimental research on attenuation coefficient model of low-frequency wave in oil layer;
低频波在油层中衰减系数预测模型的实验研究
补充资料：质量衰减系数
分子式：
CAS号：
性质：一束平行X射线通过单位质量的均匀物质时，强度衰减量(dI0)与入射线强度(I0)的相对值，以符号μm表示。它的微分式和积分式为：式中m为质量(g)；ρ为物质密度(g/cm3)；I为通过物质厚度x后的衰减强度；μm单位为cm2/g。
CAS号：
性质：一束平行X射线通过单位质量的均匀物质时，强度衰减量(dI0)与入射线强度(I0)的相对值，以符号μm表示。它的微分式和积分式为：式中m为质量(g)；ρ为物质密度(g/cm3)；I为通过物质厚度x后的衰减强度；μm单位为cm2/g。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条