熱帶幾何 的英文怎麼說
中文拼音 [rèdàijīhé]
熱帶幾何
英文
tropical geometry-
Assessing the situation without anything having to be explained, celia had been cordial, even warm, though not phonily effusive to the old lady.
西莉亞不需要任何解釋就明白了眼前的形勢，對老太太親切友好，甚至帶有幾分熱情，但並不做作。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。By a large amount of calculations, the influence of the structure dimensions and the dielectric parameters on dispersion characteristic and coupling impedance of this kind of slow - wave structure is obtained. then, the linear beam - wave interaction theories of the arbitrarily - shaped helical groove waveguide and the dielectric into the arbitrarily - shaped helical groove waveguide are deduced. by the numerical calculations, the relationship is got between the small signal gain, bandwidth, electromagnetic " hot " velocity and the electronic beam, the structural parameters
通過數值計算，獲得了此類慢波結構的色散特性和耦合阻抗隨結構幾何尺寸和介質參數的變化規律;在此基礎上，建立了任意槽形螺旋槽及中心加介質棒的任意槽形螺旋槽行波管的注-波互作用線性理論，並編製程序，計算了管子的小信號增益、帶寬、電磁慢波的「熱」相速與電子注參數、結構參數之間的關系，獲得了增加帶寬或增益的途徑。The picturesque island with virtually no motor vehicles has a bustling waterfront promenade of seafood restaurants and is packed with visitors every spring for the cheung chan bun festival in 2005, on 9 - 15 may, when 15 - metre - high bamboo towers of sweet buns are carried in a procession to the island temple
這個風景如畫的離島，幾乎沒有任何摩托車輛，但海濱一帶卻擠滿了各式各樣的海鮮酒家，每年春季在2005年，是5月9至15日，這里更會舉行熱鬧非常的長洲包山節。I can live almost anywhere it ' s not too cold, from deserts to tropical rain forests
我幾乎能住在天氣不太冷的任何地方，從沙漠到熱帶雨林。If we had any regrets at all, they were about the weather. most of us, being from the earth s subtropical zone, had never seen snow before. thus, before we departed for the retreat, extensive coverage by international news and weather reports about a snowstorm in chicago greatly troubled us, and scared some initiates away from the event
不過，如果真的還有什麼遺憾的話，大概就是打禪這些天，天氣實在太好了我們這群來自亞熱帶的大孩子，大部分的人都還未實地見識過下雪的情景，何況就在我們出發的前幾天，國際新聞與氣象報導都還不斷密集地播報芝加哥地區遭大風雪肆虐的消息，情況很令人擔心，有些怕冷的同修甚至還被嚇得不敢來。分享友人