燕尾形 meaning in English
dovetail
Examples
- 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
结论为: ( 1 )槽深较大情况下,槽形状对截至频率影响较大,槽形状从三角形变化到燕尾形,截至频率依次降低。 - 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
结论为：中文摘要（ 1 ）适当槽深情况下，槽形状对高截止频率影响较大；槽形状从三角形变化到余弦形直到燕尾形，高截止频率依次降低。 - ( 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 ）具有相同槽日宽度的燕尾形螺旋槽结构在槽深度较深情况下用作大功率行波管的互作用系统具有最大的耦合阻抗和最低的相速。 - 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 )
主要工作成果和创新之处在于: 1 .通过考虑高次模式的影响,获得了一种更为精确分析任意槽形螺旋槽结构的普遍理论,经与实验测量值比较,发现它更能准确可靠地描述此类螺旋慢波结构的高频特性,然后详细研究了五种槽形状(三角形槽、余弦形槽、梯形槽、矩形槽和燕尾形槽)对螺旋槽慢波系统导波特性的影响。