間高比 的英文怎麼說
中文拼音 [jiāngāobǐ]
間高比
英文
spacing height ratio-
On one hand, numerical derivatives provide proper search directions in optimization, therefore their accuracy is of great importance for fast convergency. on the other hand, derivative evaluation is one of the most time - consuming steps in optimization
當前的高性能數學規劃演算法大都依賴于導數計算以快速收斂到最優點，所以對求導精度的要求比較高；而導數計算所消耗的時間占優化時間的比例又非常的大。The base ratio of 1 : 1 for the bases adenine and thymine and the bases cytosine and guanine was the first clue to the specificity of base pairing in the nucleic acids
在核酸中的堿基配對高度專一性的原則決定了腺嘌呤與胸腺嘧啶，或鳥嘌呤與胞嘧啶之間的比值為1 ： 1 。There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared
實驗研究的兩種菊科（ compositae ）植物（準噶爾沙蒿（ artemisiasongaricaschrenk ）和沙漠絹蒿（ seriphidiumsantolinum （ schrenk ） poljak . ） ） ，形態解剖方面的變化表現為：隨日齡增加，根長/株高比值日益增大；根系逐漸發達；體積與葉面積比逐漸增大；表皮細胞體積變小；角質層增厚；根外部出現加厚的木栓層；氣孔下陷；葉、莖部的表皮毛密布，柵欄組織日益發達；而細胞間隙日漸變小；海綿組織逐漸消失；葉面結構常為典型旱生結構? ?等葉面；晶細胞及纖維細胞數目增多；輸導組織、機械組織日漸發達；具有維管束鞘等等。It is found that the nano material is distributed not only among general material grains to form inter - granular structure of the coating but also in the general material grains to form intra - granular structure. micro - crack caused by laser will be eliminated greatly. 3 mechanical performances of the ceramic coating manufactured are tested
得到的結論是經過激光熔覆后的塗層緻密化程度有了很大的提高，比單純的激光重熔塗層還高，納米顆粒不僅填充在晶粒之間，而且還嵌入在大晶粒內部，有利於消除激光作用產生的微裂紋。“ nobody could believe cuba would ban smoking. it ' s like spain banning wine, ” said jose luis flores, a sommelier at a top restaurant in toledo, spain
沒人會相信古巴居然會禁菸。這就好比西班牙宣布禁酒一樣（令人難以置信） ，荷西路易斯佛洛雷斯，一位來自西班牙托雷多一間高級餐廳的專業侍酒師這麼說。The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。The research shows that : 1 ) the ductility of the hsc bending members constructed is much greater than 5 ; 2 ) increasing the vertical links and distribution steel can increase the deflection under ultimate moment ; 3 ) with appropriate compressive bars, vertical links and distribution steel the increase of moment after yield and the decrease of moment under ultimate moment can be ignored, so the ductility of the hsc bending member is much larger ; 3 ) the width / depth ratio of hsc bending member has no obvious effect on the ultimate compressive strain of concrete ; 4 ) the method used here to calculate the deflection is applicable ; 5 ) the location of crack coincides with the location of vertical links and distribution steel ; 6 ) the bending property of the hsc structure under the blast load can meet the demand of protective engineering
研究表明：本文研究的梁、板構件的延性比遠大於5 ；增加箍筋（鉤筋、分佈筋）含量，可以提高壓區混凝土剝落時的撓度；在適當的受壓筋、箍筋（鉤筋、分佈筋）含量下，可以忽略壓區混凝土剝落瞬間的承載力下降，從而大大提高構件的延性；受彎構件的寬高比對壓區混凝土極限應變的影響不明顯；受彎構件的裂縫間距受箍筋（鉤筋、分佈筋）的布置影響；文中所用的承載力和變形計算方法是可行的。化爆試驗表明，高強混凝土構件的動載抗彎性能能夠滿足防護結構的要求。An experiment has been conducted for investigating the rule of water consumption with three species of turfgrasses : kentucky bluegrass ( poa pratensis ), perennial ryegrass ( lolium perenne ), and tall fescue ( festuca arundinacea ) ; two kinds of irrigation water resources : tap water and sewage effluent ; and two kinds of irrigation methods : subsurface dripping irrigation and subsurface leaky pipe irrigation
本研究以三種典型的冷季型草坪草草地早熟禾、多年生黑麥草、高羊茅為供試草種，以自來水和經過砂過濾和沉澱處理的城市居民社區的生活污水為灌溉水源，採用地下滴灌和滲灌兩種灌水方法，通過田間對比試驗，探討了污水灌溉條件下草坪草的耗水規律。The surface modification of foils contributes to the activation of surface before etching, and consequently provides more pit sites. the redemption and regeneration of passive film on foil surface lead to continuous growth of tunnels. anodized in oxide - forming acid, the etched foil shows higher capacitance
侵蝕前鋁箔的表面改性處理研究了堿性、酸性溶液、直流電和低頻交流電對比容的影響，結果表明堿性溶液和酸性溶液處理有利於活化表面、提高比容；直流電和低頻交變電流表面改性需嚴格控制時間在5s內，最佳為2s ，可提高比容8 10 。In the paper, the ecophysiological characteristics of achnatherum splendens, the effects of water and fertilizer on it and a comparative research to other grass were studied, which provided scientific basis on utilization and exploitation of achna therum splendens
本文研究了在黃土高原大面積生長的優良禾本科牧草?芨芨草的生理生態特性、水肥因子對它的影響以及同其它兩種牧草（本氏針茅和厚穗冰草）間的比較，為芨芨草的開發利用提供科學依據。As compared with those diagnosed at an older age, patients diagnosed at ? 6 years were more likely to be male, have dka and a shorter symptom duration, and report more episodes of preceding viral infection and dyspnea
發病年紀在6歲以下的病人有較高比例為男童、糖尿病酮酸癥、近期病毒感染以及呼吸困難的情況，而且發病前癥狀時間較短。The centre has a first - class infrastructure and superb exhibition and conference facilities with everything from seven harbour - view restaurants to adjacent banking, shopping arcades and deluxe hotels
會展中心毗鄰商店林立，銀行匯聚，多間高級酒店亦瞬步可至，無比便利。That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes
參考譯文：這意味著更高比例的海洋生物正在遭到捕獲，因此今昔之間的真正差別可能比通過捕獲量的變化記錄的差別更大。Therefore it is reasonable that special surface of steel - making slag powder is controlled in the rang between 450 - 500m2 / kg. furthermore, when special surface of different steel - making slag powders are close, steel - making slag powder, which surface is attached lot of fine particle powder or which degree of roundness is high, has higher cementitous property
實驗結果表明，提高比表面積可提高鋼渣粉的膠凝性能，但當比表面積超過500m ~ 2 kg時，鋼渣粉的膠凝性能提高已不顯著，鋼渣粉的最佳比表面積應控制在450 500m ~ 2 kg之間；比表面積相近時，表面有細小顆粒吸附且顆粒圓形度高的鋼渣粉有相對較高的膠凝性能。Generally speaking activity of steel - making slag is higher than first grade fly ash. influence of special surface and particle morphology of steel - making slag powder on cementitous property is studied by experiment. results show that cementitous property of steel - making slag powder increase with increase of its special surface, but increase of cementitous property is not obvious when its special surface is beyond 500 m2 / kg
實驗結果表明，提高比表面積可提高鋼渣粉的膠凝性能，但當比表面積超過500m ~ 2 kg時，鋼渣粉的膠凝性能提高已不顯著，鋼渣粉的最佳比表面積應控制在450 500m ~ 2 kg之間；比表面積相近時，表面有細小顆粒吸附且顆粒圓形度高的鋼渣粉有相對較高的膠凝性能。Asthma was significantly more likely at age 7 in children who had receied antibiotics in the first year of life for non - respiratory tract infections than in those who had not receied antibiotics at all ( or 1. 86, 95 % ci 1. 02 to 3. 37 )
在出生后第一年因非呼吸系統感染原因使用過抗生素的七歲兒童比從沒使用過抗生素的兒童的哮喘發生幾率顯著升高（比值比為1 . 86 ， 95 %可信區間為1 . 02 ? 3 . 37 ） 。In this paper, the high surface area activated carbon ( hsaac ) was prepared from low - ashed anthracite by the activation of koh. the influences of the ratio of koh to anthracite, the activating temperature and activating time on yield, adsorption properties, pore structure and capacitance characteristic of hsaac had been investigated. based on these, the technologic methods and conditions of controlling structure and properties of hsaac have been established
本文以超低灰無煙煤為原料，採用koh化學活化法制備高比表面積活性炭（ highsurfaceareaactivatedcarbon ，簡稱hsaac ） ，系統考察了堿炭比，活化溫度和活化時間等工藝因素對hsaac的收率、吸附性能、孔結構和電容特性的影響，確立了調控hsaac結構和性能的工藝方法和工藝條件。The measurements of discharge coefficients and pressure coefficients along the models with aspect ratios of 0. 5, 1. 0 and 2. 0 were carried out under various aerodynamic and geometric parameters ( reynolds numbers : 20000, 40000, 60000, 80000 ; suction rates : 0. 3, 0. 45 and 0. 6 ; rib angles : 45, 60, 90, 120 ; rib height - to - width ratio h / e : 1. 0 and 2. 0 ; film hole location : middle of ribs. upstream of ribs and downstream of ribs ). based on the abundant experimental data and figures, rules of discharge coefficients and pressure coefficients in dependence of geometric and aerodynamic parameters were given out
根據實驗課題的要求，在寬高比分別為1 . 0 、 2 . 0和0 . 5的內流冷卻通道里，在不同的氣動和幾何參數（雷諾數re分別為20000 、 40000 、 60000 、 80000 ，出流比sr為0 . 3 、 0 . 45和0 . 6 ，肋角分別為45 、 60 、 90 、 120 ，肋高h e分別為1 . 0和2 . 0 ，孔位分別為肋中間、肋下游和肋上游）的情況下，對流量系數和壓力系數以及流場進行了實驗研究，獲得了大量的實驗數據和圖形，較為詳細地給出了流量系數和壓力系數隨不同氣動參數和幾何參數而變化的規律。" in terms of caloric expenditures 支出 ； 消費, time is more important than intensity 強烈 ； 極度, " says otto. and the average person cannot sprint 疾 跑 or pedal at a high intensity for very long
"就熱量消耗而言，時間比強度更重要， "奧托這樣說。並且一般人不能做到長時間高強度地快跑或蹬車。There were also a significant higher percentage of positive responses for vardenafil with regards to erection hardness for penetration, maintenance of erection, maintenance until completion, and erection confidence
在勃起時插入硬度，勃起維持時間，全程維持和勃起信心方面，伐地那非也有更高比例的陽性反應。分享友人