本文概述了特殊核材料的定义、分类、辐射特性及其鉴别方法。
This article summarize definition, categorization and Identification of Special Nuclear Material.
针对这种压电换能器结构，深入研究了SH波的激发和辐射特性。
The SH wave is studied for the structure of this piezoelectric transducer.
具有良好辐射特性的天线是高功率毫米波发射系统的关键部分之一。
Antennas with high radiation performance are the key part of high-power radiation system.
出现偏差的主要原因是由于理论分析时未考虑真空过热蒸汽的辐射特性。
The reason for this difference is that we neglected the effect of radiation.
由于玉石的自由水结晶构造，具有热容量大和辐射散热快的物理特性。
Because the free water jade crystal structure, thermal capacity and radiation heat faster physical properties.
分析典型舰船辐射噪声的产生机理、特性、构成。
The mechanism of production, property and constitution for ship radiating noise are analysed.
铁路列车运行噪声的水平指向性是铁路列车噪声辐射的重要特性之一。
The horizontal direction of train running noise is a important character of train radiating noise.
铁路列车运行噪声的水平指向性是铁路列车噪声辐射的重要特性之一。
The horizontal direction of train running noise is a important character of train radiating noise.
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