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- At present, selective catalytic reduction (SCR), non selective catalytic reduction (NSCR) and catalytic decomposition are main methods for the NO x removal. 选择性催化还原、非选择性催化还原及催化分解是目前研究较多的脱除氮氧化物的方法。
- Frequency selective surface (FSS) is a two-dimensional periodical structure and used mostly in the filter. 频率选择表面(FSS)是一种具有二维周期性结构的滤波结构,主要在滤波器上使用。
- In order to realize wideband filtering properties of frequency selective surface (FSS), FSS of closely packed elements is presented. 为了实现频率选择表面(FSS)的宽带滤波特性,本文给出了单元紧密排布的FSS结构。
- In this paper an effective manner to minimize RCS of radar system-Y shape sloted frequency selective surface (FSS) is presented. 为此,本文提出了一种有效的减小雷达天 线RCS的方法--Y形缝隙频率选择表面(FSS)。
- Study on the application of frequency selective surface (FSS) to the design of composite microwave absorbers was presented. 摘要对频率选择表面(FSS)在复合吸波材料设计中的应用进行了研究。
- Balocchi C E,Bridgwater F E.Selection efficiency in a non selected population of loblolly pine[J].For.Sci. 周永学;苏晓华;樊军锋;等.;引种欧洲黑杨无性系苗期生长测定与选择[J]
- At present,the principle of frequency selective surface and the principle of IR coating are adopted to combine different orientations of IR and MMW to uniform direction. 为了将不同方向的红外与毫米波复合成同一出射方向,现在国内多采用频率选择表面原理与红外高反原理。
- At present, the principle of frequency selective surface and the principle of IR coating are adopted to combine different orientations of Ill and MMW to uniform direction. 摘要为了将不同方向的红外与毫米波复合成同一出射方向,现在国内多采用频率选择表面原理与红外高反原理。
- Frequency Selective Surface(FSS) of complex dense elements is presented in this paper.The complex elements composed of Y loop and Y geometries are closely packed in triangle form. 选取Y环和Y组成的复合图形为基本图形单元,采用密集三角形排布方式,设计了一种密集型组合单元频率选择表面(FSS)结构。
- In combining the millimeter wave with the infrared wave system, this paper uses the frequency selective surface (FSS) to design the antenna multiplex based on the theoretical analysis. 摘要在毫米波和红外相结合的复合系统研究中,结合飞行器雷达天线系统的设计需要,在理论分析的基础上,采用频率选择表面(FSS)来设计天线复用副面。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- In the choice of decoration materials, should be selected surface glossy, without sudden, sharp, no abrasions to the skin into consideration. 在装饰材料的选择上,应尽量挑选表面光滑,无突起、尖角者,以求无擦伤划破皮肤之虑。
- A novel design method for frequency selective surfaces(FSSs) in application of a double curved streamlined radome is presented in this paper. 提出并发展了一种适于任意双曲率曲面雷达罩的FSS设计方法。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- Antenna Multiplexer of Frequency Selective Surface 频率选择表面天线复用副面的研究
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- Characteristics of attenuating and absorbing of super wideband radar surface wave by means of radar absorbing coatings as well as radar absorbing coatings combined with frequency selective surfaces are studied and then reported here. 研究了雷达吸波涂层对宽频段雷达表面波衰减吸收的规律以及频率选择表面与吸波涂层相结合的复合吸波涂层对宽频段表面波衰减吸收的规律。
- Compact frequency selective surface 频率选择性表面
- frequency selective surface(FSS) 频率选择表面