rectangular tunnel 中文意思是什麼
rectangular tunnel
解釋
矩形截面風洞- rectangular : adj. 矩形的，長方形的；成直角的。
- tunnel : n 隧道；地道；坑道；管道，煙道，風洞；【礦物】石巷，平峒。 tunnel warfare 地道戰。vt （〈英國〉 l...
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Inner force analysis for bars with variable cross - section of rectangular tunnel
矩形隧道中變截面桿件的內力分析 -
Calculation of the structure clearance for rectangular tunnel in urban rail transit
軌道交通明挖矩形隧道曲線地段建築限界的計算 -
The results show that in a rectangular tunnel with bigger dimension of the width, field strength of horizontal polarization mode is markedly higher than that of vertical polarization mode, influence of the height change on the field strength is stronger than that of the width change, and the difference of influences decreases with the increasing of frequency and transverse dimension
結果表明：在寬度尺寸大於高度尺寸的矩形巷道中，水平極化模式的場強明顯高於垂直極化模式，高度尺寸的變化對場強的影響比寬度尺寸的變化要大，這種影響差異隨頻率的增高和截面尺寸的增大而變小。 -
Lou wen - juan, jin hu, chen yong, et al. wind tunnel test study on wind load characteristics for double - skin facade building with rectangular shape j. journal of building structures, 2005 ( 1 ) : 65 - 70
樓文娟，李恆，魏開重，等.典型體型高層建築雙層幕墻風荷載特性的試驗研究j .哈爾濱工業大學學報，待發表 -
Analysis of effects of trains on cutoff frequency rectangular tunnel with ridged waveguides method
列車對矩形隧道電磁波傳輸影響帶脊波導分析 -
When frequency slightly higher than cutoff, using perturbation method it is to know that tunnel wall wet make attenuation of electromagnetic wave lower not only in rectangular tunnel but also in circular tunnel
當頻率略高於隧道截止頻率時利用微擾法可知：不論是矩形隧道還是圓形隧道，隧道壁潮濕使電磁波的衰減率降低。 -
When frequency much higher than cutoff, using classical formulation method it is to know that tunnel wall wet make attenuation of electromagnetic wave increase in rectangular tunnel and make attenuation of other electromagnetic wave mode increase but te mode with tunnel wall permittivity
當頻率遠高於截止頻率時，利用傳統公式法可知：矩形隧道中隧道壁濕潤引起衰減增大；圓形隧道中e模式衰減率因電容率的增大而減小，其他各模式則因電容率的增大而增大。
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