達因風壓計英文怎麼說

達因風壓計 的英文翻譯

達因風壓計 例句

1. The coaction of wind pressure and thermal pressure in air infiltration calculation
   空氣滲透 計 算中 風 壓 與熱 壓 的疊加作用
2. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
   流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原 因 是閉死容積在大圓弧段 壓 力切換時產生的瞬時高 壓 迴流，在配流盤上開設v型尖槽可降低 因 高 壓 迴流而引起的流體噪聲，本文以截流作用和液體的可 壓 縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論 計 算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設 計 ，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。
3. The wind magnitude and wind pressure can be easily adjusted in a wide range with a displaying device avilable. a well - illuminated air suction hood is equipped, which ensures clear observation of the movement of materials. besides, on both sides of the screen there are four holes available that make cleaning easy. the inclination angle of screen can be adjusted within a scope of 7 - 9. therefore, this machine is able to maintain stone - removing effect even the amount of material fluctuates. it can be used to remove the mixed stones in foodstuffs, grains, grease, feedstuffs and chemical products
   調節 風 量 風 壓 方便，且范圍大有顯示裝置，配有大採光吸 風 罩，物料運動一目了然配有先進照明燈觀察，篩體二側設有四個清理手孔清理方便，去石篩面傾斜角度可可、調范圍7 - 9 ， 因 此本機在產量波動范圍之內均能 達 到去石效果及用於去除不同種類，糧食、雜糧、油脂、飼料、化工其它等的並肩石。
4. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation
   數值模擬採用fluent軟體， 計 算結果用excel進行處理，通過對大量數值工況進行數值模擬 計 算，結果表明：對于單側百葉 風 口， 計 算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論 計 算值中定義為流體流經百葉 風 口內部時的速度，即有效速度，而工程上常使用流體的來流速度來 計 算， 計 算表明，的理論 計 算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小， 壓 力損失越小、出口速度越小； 因 此在要求進口 風 速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉 風 口；在要求進口 風 速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大， 壓 力損失越大，出口速度越小， 計 算表明，鑒于 壓 力損失、出口 風 速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在 計 算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
5. Multi - span plastic greenhouse structure design theory has been studied systemic which include design loads, design methods and system optimization designs aimed at the situations above - mentioned, meanwhile, theory analysis and designs have been completed for series east - china multi - span plastic greenhouses in accordance with the local climate characteristic. some elementary conclusions are summed up : ( 1 ) in the aspect of multi - span plastic greenhouse structural design loads researches, based on the contrast analysis of loads provided in foreign and chinese standards, analysis and discussion are mentioned about the definition loads, the estimation and load cases for multi - span plastic greenhouse structural design in details, some conclusions are summed up first : i, wind load : under the present conditions, it is unnecessary to
   得到一些初步的結論： （ 1 ）在連棟塑料溫室結構設 計 荷載研究方面，從分析比較國外關于溫室建築及我國工業與民用建築設 計 荷載規范的角度出發，針對連棟塑料溫室結構設 計 中的荷載定義方法、 計 算取值、荷載組合等進行了較深入的探討和分析，首次得到以下結論： 、 風 荷載：在現有條件下，考慮 風 壓 高度變化系數、陣 風 作用 因 子和 風 荷載體型系數，按中國建築結構荷載規范（ cbj9 ? 87 ） 計 算 風 荷載是可以的，不必進行重現期博士學位論文摘要修正。

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