相似性弧 的英文怎麼說
中文拼音 [xiāngsìxìnghú]
相似性弧
英文
similarity arc- 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
- 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
- 弧 : 名詞1. [數學] （圓周的任意一段） arc2. （古代指弓） bow
- 相似性 : [物理學] similitude; similarity相似性定律 similar law; 相似性法則 similarity rule
- 相似 : 1. （相像） resemble; be similar; be alike 2. （相像處; 類似物） similarity; similitude; analogue
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Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results
文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合As the electric power & electronic technology is used widely in low voltage area, the properties of voltage and current in normal working conditions of electrical appliance closely resemble or mimic the un - normal properties created by the arc fault, so it is difficult to distinguish between normal and un - normal cases
隨著電力電子技術在低壓領域的廣泛應用，一些電器正常工作時的電壓電流特性與故障電弧的典型特性相似，給檢測工作帶來了難度。The mafic dykes are characterized by arc - like trace elements, high initial 87sr / 86sr ratios and low end ( t ) values, and show some familiarities with the emii - mantle source
海南島基性巖脈具有與「島弧」特徵相似的微量元素組成特徵以及高sr 、低nd的同位素特徵，表明其源自具有em特徵的富集地幔。
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