燕尾形 的英文怎麼說

中文拼音 [yānwěixíng]
燕尾形 英文
dovetail
  • 燕 : 燕名詞1. （古國名） yan, a state in the zhou dynasty2. （河北北部） northern hebei province3. （姓氏） a surname
  • 燕尾 : forked tail; swallow tail燕尾服 swallowtail; swallow-tailed coat; tailcoat; dovetail; tails; cut-away
  1. Considering the influence of high evanescent modes, we have obtained the common theory. by the comparing between theoretical calculation and experimental data, we found the theory can accurately describe the high - frequency characteristic of this kind of slow - wave helical groove structure. then, five representative shapes are chosen and researched particularly ( triangle shape, cosine shape, trapezoid shape, rectangular shape and swallow - tailed shape )

    主要工作成果和創新之處在於: 1 .通過考慮高次模式的影響，獲得了一種更為精確分析任意槽形螺旋槽結構的普遍理論，經與實驗測量值比較，發現它更能準確可靠地描述此類螺旋慢波結構的高頻特性，然後詳細研究了五種槽形狀（三角形槽、餘弦形槽、梯形槽、矩形槽和燕尾形槽）對螺旋槽慢波系統導波特性的影響。
  2. Lathe this used for, plane level and take shape taxi lathe, to process narrow and long level, t word trough of part, swallow tail trough, etc. productivity high

    本機床是用於刨平面和成形面的機床，對加工狹長零件的平面、 t字槽、燕尾槽等生產率更高。
  3. A small bird with long wings and a forked tail that eats insects, which visits korea in spring

    常于南韓的春天出現，是一種體積細小翼長和尾部呈叉形的燕子，它的主要食糧是昆蟲。
  4. ( c ) for the helical swallow - tailed structures with same groove width, the deep groove depth one which is suitable for the use in a interaction system of high power twts, has the largest coupling impedance and the lowest phase velocity in comparison with the other different groove profiles

    （ 3 ）具有相同槽日寬度的燕尾形螺旋槽結構在槽深度較深情況下用作大功率行波管的互作用系統具有最大的耦合阻抗和最低的相速。
  5. Phenyl group introducing to cholesteryl ester molecules can enhance the phase transition temperatures of the liquid crystals and their stability. an increase in the chain length for cholesteryl dicarboxylate samples reduced stability of liquid crystal phases. while coattail - like structures on the ester group of the molecules have an adverse effect to form cholesteryl liquid crystal phase

    化學結構對液晶性的影響表現為：分子中引入苯環剛性結構可以提高液晶的相變溫度和穩定性；脂族二羧酸膽甾醇酯中脂肪鏈的長度增加會降低液晶的穩定性；而末端含有燕尾結構則對液晶態的形成產生不利影響。
  6. The results show that : ( a ) the influence of the groove shape on the low cut - off frequency is great at certain groove depth ; the high cut - off frequency is gradually lowered from triangle profile, cosine profile to swallow - tailed profile

    結論為: （ 1 ）槽深較大情況下，槽形狀對截至頻率影響較大，槽形狀從三角形變化到燕尾形，截至頻率依次降低。
  7. The results show that : ( a ) the influence of the groove shape on the high cut - off frequency is great at certain groove depth ; the high cut - off frequency is gradually lowered from triangle profile, cosine profile to swallow - tailed profile

    結論為：中文摘要（ 1 ）適當槽深情況下，槽形狀對高截止頻率影響較大；槽形狀從三角形變化到餘弦形直到燕尾形，高截止頻率依次降低。
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