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1)  second order imaging property
二阶成象特性
2)  second-order characteristics
二阶特性
1.
The spatial distribution of pores on cross section of lotus-type porous magnesium has been studied with second-order characteristics, nearest-neighbour distribution, etc.
采用统计分析方法,通过平面气孔分布的二阶特性、气孔最邻近距离分布等分析了藕状多孔镁横截面上气孔的分布,结果表明气孔呈近程有序排列。
3)  Imaging characteristics
成象特性
4)  characteristics of duality
二象性特质
5)  second order statistics
二阶统计特性
1.
It explores the second order statistics of fading envelopes influenced by nonisotropic scattering environments with light-of-sight(LOS),and uses an AR model for channel simulation.
在研究接收信号(含直射和方向性散射)复包络二阶统计特性的基础上,采用AR模型对信道进行仿真。
2.
With this condition, A blind i-dentification algorithm based on second order statistics of received signals is obtained in frequency domain.
在此基础上,利用输出信号的二阶统计特性给出了相应的频域上的辨识算法。
6)  the second-order coherence properti
二阶相干特性
1.
In this article,the second-order coherence properties of light in the system of two identical two-level entangled atoms Raman interacting with the coherent optical field are studied by means of the quantum theory and the numerical method.
采用全量子理论和数值计算方法,研究了两纠缠原子与相干态光场Raman相互作用过程中系统光场的二阶相干特性及两原子初始纠缠度和系统耦合常数对光场二阶相干的影响。
补充资料:二氧化双环戊二烯B阶树脂模塑料
分子式:
CAS号:

性质:又称二氧化双环戊二烯B阶树脂模塑料。以二氧化双环戊二烯B阶树脂为基料配制的能采用模塑方法成型的配混料。产品性能为:弯曲强度110MPa,冲击强度5.4kJ/m2;马丁耐热240℃;体积电阻率1.3×1016Ω·cm,介电强度24.5MV/m。由二氧化双环戊二烯B阶树脂,用石英粉等作填料,再加脱模剂配混制得。可用模塑法制成耐热、耐候制品用于军工和民用方面。

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