基于分形的自相似性和空间填充特性设计的分形天线，具有电小尺寸、宽频和多频等特性。
The fractal antenna based on space self-filling ability and self-similarity ability, presents some characteristic such as electrically small size, wideband and multi-frequency.
结果表明：微孔阴极中的颗粒连通性好、颗粒尺寸小以及孔隙率高都有利于电脱氧的进行。
The results show that small particle size, good connectivity among particles and high porosity of the cathode enhance the rate of electro-deoxidation.
本文研究小电尺寸副面和馈源横向大偏焦时次级方向图特性。
This paper investigates the secondary pattern performance for the small electrical size subreflector and large lateral-feed displacement.
电-磁振子组合型UWB天线集电振子和磁振子于一身，具有尺寸小、辐射效率高的特点。
The electric-magnetic vibrator combined UWB antenna (EMV-UWB) that constructed of electric and magnetic vibrator, has the characters of small size and high radiated efficiency.
本文提出一种简单而实用的平面结构的单极子电小天线，研究输入阻抗随天线外形尺寸和频率的变化规律。
In this paper, a simple and practical electrically small planar unipole antenna is presented, and the dependences of input impedance on dimension of the antenna and frequency are investigated.
金属纳米粒子由于其小的尺寸和大的比表面积等特点，使其具有独特的热性能、电性能、磁性能和光性能，以及很强的团聚趋势。
Metal nanoparticles exhibit unique thermal, electronic, magnetic and optical properties because of the small sizes, large specific surface characteristics and the aggregative trend.
实验结果表明：直接电脱氧法制备金属镝工艺是可行的，微孔阴极中的颗粒连通性好、颗粒尺寸小、孔隙率高均有利于电脱氧进行。
The results showed that small particle size, good connectivity among particles and high porosity of the cathode could enhance the rate of electro-deoxidation.
相对于“传统”电小天线，CFA天线有整体尺寸小、辐射性能优良等优点，但其径向尺寸大，结构也较复杂。
Compared with"conventional"electrically small antennas, CFA has the merits of small dimension and high efficiency, and so on. But its radial dimension is large, and its structure is complicated.
相对于“传统”电小天线，CFA天线有整体尺寸小、辐射性能优良等优点，但其径向尺寸大，结构也较复杂。
Compared with"conventional"electrically small antennas, CFA has the merits of small dimension and high efficiency, and so on. But its radial dimension is large, and its structure is complicated.
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