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- backward spatial harmonic 反向空间谐波
- Abstract: Spatial harmonic coefficients are theoretically calculated for transverse magnetic TM01 mode in slow wave structure (SWS) of relativistic backward-wave oscillators(RBWO). 摘 要: 对相对论返波管的慢波结构中横磁模-TM01模的空间谐波系数进行了理论计算。
- Line width,line space,modulation depth,modulation trnasfer function,spatial harmonics,brightness distribution of light spot and gration distortion etc parameters can be measured by the system. 本系统可测量线宽、线间距、调制深度、调制传递函数、空间谐波、光点的亮度分布、光栅畸变等参量。
- He lined out for home without a backward glance. 他头也不回,急忙往家里走去。
- This part of the country is still backward. 这个国家的这个地区仍很落后。
- In some cities housing conditions went backward. 某些城市的住房条件越来越差。
- The teacher was patient with backward children. 那位老师对迟钝的学童十分耐心。
- He looked backward over his shoulder. 他回头向后看。
- The harmonic combination of these tones. 四度和音音调的和谐组合
- She looked backward over her shoulder. 她回头往後看。
- spatial harmonic 空间谐波
- Sheila is very clever but rather backward in expressing her ideas. 希拉很聪明,然而在表达思想时却有些腼腆。
- Although he is clever, he is backward in giving his views. 他虽然很聪明,却不善发表他的意见。
- Frank was so backward that he hesitated to ask her to dance. 法兰克非常腼腆,不好意思请她跳舞。
- He had a firsthand taste of life in backward mountainous areas. 他直接体验过落後山区的生活。
- A tone in the harmonic series of overtones produced by a fundamental tone. 泛音指由一种基本的声音所产生的一系列和谐的泛音中的声音
- A backward flow of water, as from the action of oars. 反流,逆流向后流的水,如由浆的划动引起
- Fluctuations are spatial and temporal in character. 这种波动的特点是空间性和瞬时性的。
- The backward man lacks black background. 落后的男子缺少黑色背景。
- That real learning took place at South Harmon. 真正的学习发生在南哈蒙。