比空氣重 的英文怎麼說

中文拼音 [bǐkōngqìzhòng]
比空氣重 英文
be heavier than air
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 空氣 : 1 （大氣） air; atmosphere 2 （氣氛） atmosphere 3 （氣閘） air brake4 pneum ; pneumo ; pneumat ;...
  1. Because of its steady performance, much more sources of raw material and low cost, the study and development of zinc - air battery are always paid more attention

    鋅空氣電池因其具有性能穩定、比能量高、放電電流大、原材料來源廣泛、成本低廉等優點一直受到廣泛重視。
  2. Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing

    文摘:應用計算機模擬的方法，在不考慮燃燒的冷態情況下，研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上，比較了2種不同設計方案的氣流流動特徵，尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明，阻流板的設計對加強空氣和煤氣的混合有著極為重要的作用，同時也增加了空氣管道的阻力損失，在同樣的工況條件下需要提高管道系統的總壓力
  3. The first successful sustained powered flights in a heavier - than - air machine were made here by wilbur and orville wright on december 17, 1903

    1903年12月17日，萊特兄弟第一次用比空氣重的飛行器進行了有動力的持續飛行。
  4. The first succes * * * ul sustained powered flights in a he * * * ier - than - air machine were made here by wilbur and orville wright on december 17, 1903

    1903年12月17日，萊特兄弟第一次用比空氣重的飛行器進行了有動力的持續飛行。
  5. Everything else being equal, a cold air column, because of its higher air density, is heavier than a warm air column and thus produces a higher air pressure

    在一般相同情況下，冷空氣柱因其密度較高，會比暖空氣柱重，因而產生氣壓較大
  6. In fact, many of these parks suffer some of the nation ' s dirtiest air, rivaling or even exceeding that of our most polluted cities, such as atlanta and los angeles

    事實上，部分國家公園的空氣質量是整個國家最差的，甚至要比一些污染的城市還要嚴重，比如亞特蘭大、洛杉磯。
  7. 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。
  8. Adverse effects of ambient concentrations of air pollutants on hospitalization rates for asthma are evident. measures to improve air quality in hong kong are urgently needed

    空氣污染為兒童及長者帶來的禍害遠遠比成年人口嚴重，因此改善空氣質素實在刻不容緩。
  9. ( 2 ) the process of dc discharge in o2 / n2 mixtures with the different n2 concentration has been simulated. the dependences of number of collisions with the e / n and the energy of electron are given. it is analyzed stressfully that the process of electron - molecule collision with the e / n and the energy of electron in air at atmospheric pressure

    對于o _ 2 n _ 2混合氣體，模擬了不同配比條件下直流放電過程，得出了發生碰撞的粒子數隨e n 、電子能量的變化；著重分析了空氣中激發、電離、分解及分解電離碰撞的粒子數隨e n的變化，給出了電子漂移速度和平均電子能量隨e n的變化。
  10. Abstract : the air / fuel ratio control scheme in common use of boiler auto - burning system is introduced summary. two kinds of scheme improved to obtain the best air / fuel ratio and to raise dynamic characteristic are analyzed in particular. further how to correct measures on air / fuel ratio when changing boiler load and fuel composition is proposed and analyzed

    文摘:對鍋爐自動燃燒系統中空氣/燃料比控制的常用方案進行了簡要介紹，著重分析了兩種為獲取最佳空氣/燃料比和提高控制系統動態特性而採取的改進方案，並針對鍋爐負荷變化和燃料特性改變對燃燒狀況的影響，進一步對空氣/燃料比的修正措施進行了分析與探討，提出了綜合修正方案。
  11. Aerospace ; mass breakdown for aircraft heavier than air ; group mass statement

    航空和航天.比空氣重的飛機的質量分解.分組分質量說
  12. Aerospace ; mass breakdown for aircraft heavier than air ; detail mass statement

    航空和航天.比空氣重的飛行器的質量分解.詳細質量說
  13. Aerospace ; mass breakdown for aircraft heavier than air ; group mass statement ; condensed version

    航空和航天.比空氣重的飛機的質量分解.組質量說明.壓
  14. Aerospace ; mass breakdown for aircraft heavier than air ; main mass groups and terms of mass ; survey

    航空航天.比空氣重的飛機的質量分解.主要質量組和質
  15. Aerospace ; mass breakdown for aircraft heavier than air ; main mass groups and terms of mass ; definitions

    航空航天.比空氣重的飛行器的質量分解.質量的主要分
  16. The whole pattern of heavier - than - air construction are all precisely similar

    比空氣重的建築物的模式驚人的相似
  17. That day they became the first people to demonstrate sustained flight of a heavier - than - air machine under the complete control of the pilot

    他們在那天也率先成為完全掌控這架比空氣還重的機器而持續飛行的人。
  18. It is a colourless, odourless and tasteless gas, slightly heavier than air

    它是一種無色、無溴、無味的氣體，比空氣稍重。
  19. Sea and air are divided by a viscous curtain ; beneath the curtain is an element weighing 800 times as much as air, utterly dark a few fathoms down, and with pressures that would pulp a man at 3, 000 feet

    海洋和空氣被一種粘性的「簾布」分開， 「簾布」之下是一種比空氣重800倍的成分，向下幾英嚼完全黑暗，在3000英尺深處的壓力會把人壓成醬。
  20. Aerospace ; mass breakdown for aircraft heavier than air ; dimensional and construction data

    航空航天.比空氣重的飛行器的質量詳細分解.尺寸和結
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