耗水系數 的英文怎麼說
中文拼音 [hàoshuǐxìshǔ]
耗水系數
英文
water consumption coefficient-
The correlation coefficient between 1 mol / l ntljoac extracted k and k uptake by corn plant was much lower than that with resin membrane k. 4. the k adsorbed on resin membrane after extraction was easily desorbed by 0. 5 mol / l hc1 solution. the k desorbed in the first time had a very significant correlation with k uptake by corn seedling in the - k treatment of pot experiment
用1mol l中性nh _ 4oac提取的土壤速效鉀與盆栽耗鉀試驗中首茬玉米吸鉀量之間的相關系數較低,雖然也達到了極顯著水平,但明顯低於樹脂膜室內埋置法提取的土壤鉀與玉米吸鉀量之間的相關系數。Based on developed experimental testing facility, the shading performances of southing horizontal shading devices, vertical shading devices and integrative shading devices of external windows are measured, the performance parameters including indoor temperature, air - conditioned cooling load and shading coefficient as so on. and the shading coefficient of experimental test results and calculation results based on design standard for building energy efficiency are compared, and the windows5. 2 simulation results are compared also. the measured results are consistent with the calculation results of horizontal shading devices and vertical shading devices
本文利用研製的建築遮陽性能檢測裝置,對南向水平遮陽板、垂直遮陽板和綜合遮陽板外窗的遮陽性能(包括室內溫度、空調耗冷量和遮陽系數等)進行了實驗測試,並對遮陽系數的實驗測試結果與節能設計標準的計算值以及windows5 . 2軟體的模擬結果進行了比較分析,測試結果表明水平遮陽板和垂直遮陽板外窗的遮陽系數與計算結果比較一致,相對誤差分別為2 . 5 %和4 % ,而綜合遮陽板外窗的遮陽系數與計算結果的差值比較大,相對誤差達到10 %以上。Static benefits are generated from peaking and valley - filling, which are further divided into capacity benefits and coal saving benefits. dynamic benefits come from its fast starting and flexible operation, including frequency regulation, synchronous condenser operation, fast coverage of steep load gradient and synchronous spinning reserve. as for the calculation of static benefits of pumped storage plant, the alternative coefficient method is normally adopted at present
目前在抽水蓄能電站的靜態效益計算中,一般採用替代系數法,即用抽水蓄能電站的裝機容量乘以容量替代系數( 1 . 05 1 . 1 )計算抽水蓄能電站的替代容量;用抽水蓄能電站的發電量乘以電量替代系數( 1 . 05 )計算替代電站的發電量,再根據循環效率的大小計算抽水蓄能電站的燃料消耗。In the past, more emphasis has been put on the flow pattern and the division ratio of water and sediment discharge. in order to study the division characteristics, a theoretic model is proposed in this thesis, which combines the plan configuration of channels with the minimum energy dissipation rate theory
本文將河流動力地貌學中的平面形態和最小能耗率理論相聯系,研究分汊河道的分流特性,並推導理論分流模式;另一方面,通過建立二維水流數學模型,與理論分析結果進行比較。At present, the studies about the controlled alternate furrow irrigation are focused on how it affects the water physiological indexes, water consumption and yields of crops. but, some problems suc h as the soil infiltrative parameters, irrigating water advancing, water redistribution in soil, calculation of crop water requirement and water consumption, and the upper and lower limit indexes of soil moisture, guiding a field irrigation after the controlled alternative furrow irrigation is implemented in field, have not been researched systematically and deeply. if these problems could not been solved commendably, the popularization of controlled alternate furrow irrigation will be affected
然而,目前有關交替隔溝灌溉的研究還主要集中於這種灌水方式對作物水分生理指標、耗水量和產量的影響方面,而對大田採用這種灌水式后的土壤入滲參數變化情況、作物需水量與耗水量計算、以及指導大田灌溉的水分下限控制指標等與大田生產實際密切相關的幾個問題基本上還沒有進行系統的深入研究,而這些問題如不能得到很好地解決,勢必會對這種灌水方式的推廣應用產生嚴重的影響。The shallower the sea is, the bigger the wave losses coefficient d is
突起帶水位越淺,消浪作用越強,透過的波能越少,即波能損耗系數d越大。The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc
在分析各國ogfc級配的基礎上,運用礦料體積法進行ogfc級配設計,用正交實驗對礦料級配進行了優化設計,運用數理統計方法分析礦料級配和孔隙率之間的關系,並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程,進而提出了ogfc的合理級配;通過對不同孔隙率典型級配混合料的性能研究,綜合力學和功能性能,得出了ogfc的合理孔隙率范圍:針對高速公路面層對ogfc力學性能方面的要求,本文從瀝青膠結材料、纖維穩定劑兩方面對ogfc的性能進行改善:通過sbs和橡膠粉復合改性的方法開發出了適合ogfc的高粘度改性瀝青,摻加聚合物纖維,提高ogfc的最佳瀝青用量,進而改善了混合料的高溫性能和抗水損害性能,優化設計出能滿足高速公路路用性能,車轍動穩定度達5000次/ mm以上,動融劈裂強度比90 ,透水系數31ml / s ,並具有防滑降噪功能的開級配瀝青磨耗層( ogfc )混合料。( 4 ) in 2001, the average daily et of cotton in the whole growth season is 1. 75mm / d, the total et is 307. 48mm, and the average crop coefficient ( kc ) is 0. 39 under deficient irrigation. in 2002, the average daily et of cotton in whole growth season is 1. 94mm, the total et is 337. 04mm, and the average crop coefficient ( kc ) is 0. 43 under sufficient irrigation
( 4 ) 2001年脅迫供水情況下,在整個生育期棉花的蒸發蒸騰量為307 . 48mm ,平均日耗水強度為1 . 75mm ,作物系數平均值為0 . 39 ; 2002年充分供水情況下,在整個生育期內棉花的蒸發蒸騰量為337 . 04mm ,平均日耗水強度為1 . 94mm ,作物系數平均值為0 . 43 。Given the thermal physical parameters of the envelops and the weather data, the above two parameters are determined by the following system design parameters : radiant panel dimension, radiant panel location and radiant panel layout style ( center or peripheral ). based on the thermal net model, digital analysis of the energy consumption and thermal environment are carried out to the several representative spaces under different design parameters, through which the relations of the heating load to the design parameters are obtained and can be a reference in the practical system design
對于給定圍護結構熱物性參數和室外氣候參數的條件下,室內平均輻射溫度和室內空氣溫度的大小取決于系統的設計參數:輻射板的布置方式(周邊布置和中心布置) 、輻射板尺寸和輻射板鋪設位置。基於熱網模型,利用matlab軟體編程對採暖空間在不同設計參數下室內的熱環境和能耗進行數值分析,得出了低溫熱水地板輻射採暖系統的性能和能耗指標隨這些參數變化的規律,從而為低溫熱水地板輻射採暖系統的優化設計提供了參考。The result shows that the water saving potential of consumption is much less than that of water withdrawal
在寧夏平原區,隨著水利用系數的提高,農業取用水量和耗水量不斷減少,且減少幅度越來越小。The relation which is among photosynthetic of three kind lawnx dateable and yearly transpiration rule and environmental factor is found by analysis. it is gotten account water consumption of lawn in certain unite area and ecological water requirement by accounting. all the result provides basic - 2 - data for park and garden department in changchun and offer scientific and logical advice
將結果進行分析,得出三種草坪草光合、蒸騰的年、日變化規律及與外界環境因子的關系,通過計算求出草坪草單位面積的蒸騰耗水量,為長春市園林部門提供科研基礎數據,對北方城市草坪的選種及水分管理提供合理化建議,期望以盡可能少的經濟投入換取更大的生態效益。The results showed that the transpiration rate 、 leaf rwc 、 water potential, water - consumption and water use coefficient were decreased with soil water decreasing
結果表明,蒸騰速率、葉水勢、葉片相對含水率、耗水量和耗水系數均隨十壤水分的減少而呈降低趨勢。For the practice of the water supply system of three gorges project construction, this study set up a microcosmic hydraulic model. at the same time, it set up the forecast model by the analysis of time series in water consumption both by day and by hour. and finally, the study states an optimal decision mathematics model, which aims at making the least power consumption during the water supply
針對三峽工程施工供水系統的實際,本文建立了供水系統的微觀水力分析模型;同時,採用時間序列分析方法建立了日用水量和時用水量預測模型;最後,建立了以總耗電量為最優目標的優化決策數學模型,並採用動態規劃方法進行模型的尋優計算。In plain area, following the increase of water use coefficient, the amount of water withdrawal and consumption for agriculture is gradually decreased and at the same time the saved amount of water withdrawal and the saved amount of water consumption increase gradually, but the increase rate tends to small
隨著水的利用系數的提高,農業取用水節水量和耗水量不斷提高,且取用水節水量和耗水節水量的增加幅度越來越小。System ' s scaleis continuous expand and increasement of complexity. consume ofelectric energy is very large in most city. face complicated water supplysystem, it is important task how satisfy the needs of water flow, water presure and water quality, achieve better economic results and socialresults
我國數以百計的城市給水系統消耗的電能是很大的,因此,面對日益復雜的供水系統,如何在滿足供水水量、水壓及水質要求的前提下,最大限度地提高供水系統的經濟效益和社會效益,是擺在所有供水部門面前的重要課題。Abstract : the paper studies the important technique and index in application scope , equipment configuration , operating duty , energy consumption , irrigation application efficiency and economic benefit of pipe - sprinkler combined irrigation, and presents the usage method of the low - pressure pipe and multi - hole micro - sprinkler ribbon combined system
文摘:針對管噴結合灌水技術的應用范圍、設備配置、運行方式、能耗、灌溉水利用系數以及效益等關鍵技術及指標進行了探討,並提出了低壓管道和多孔式微噴帶結合系統的使用方法。Abstract : field experiments were conducted to observe winter wheat resp onse to nonunifo rm sprinkler irrigation under various christiansen uniformity coefficient ( cu ) levels ranging from 62 % to 82 %
文摘:利用田間試驗研究了不同噴灌均勻系數條件下的冬小麥耗水規律及噴灌蒸發漂移損失。On the basis mentioned above, another mathematical model for the supercharged diesel was set up. according to this model some results of simulation calculations were given. the characteristics of operation of the diesel in wet compression : including the excess air coefficient, the cylinder temperature at the beginning of compression stroke, the maximum temperature in the cylinder, the cylinder thermal load, the specific fuel consumption, and efficiency of diesel engine were obtained
在此基礎上,又建立了增壓柴油機濕壓縮的數學模型,對噴水后柴油機的各性能參數,諸如過量空氣系數、氣缸進氣溫度,缸內最高溫度、氣缸熱負荷、比油耗、熱效率等進行了模擬計算,為增壓柴油機進口加濕技術的研究提供了理論依據。From this point of view, a general analytic expression for the coefficient of local energy loss was presented based on the principle of hydrodynamics, together with experiments on particular flow characteristics and energy dissipation mechanism at right - angle junctions, and the expression was validated with the experimental data
為此,根據水動力學基本原理,在分析90匯流口獨特水流特性及能量耗散機理的基礎上,提出了局部能量損失系數的綜合表達式,並應用試驗資料對該綜合表達式進行了驗證。Details behavior as bellows : ( 1 ) the damping force of the damper with concrete ductility column is higher, and the final damping force smoothly decreases. ( 2 ) the ductility ratio of the damper with concrete ductility column is larger, so it has good ductility and its most level displacement is 1 / 14 ~ 1 / 8 of the column height. ( 3 ) the hysteretic curve of the damper with concrete ductility column is plumper
具體性能如下: ( 1 )混凝土延性柱耗能器的阻尼力比較高,後期阻尼力下降比較平緩; ( 2 )混凝土延性柱耗能器的位移延性系數較大,具有較好的延性,最大水平位移達到柱高的1 / 14 1 / 8 ; ( 3 )混凝土延性柱耗能器的滯回曲線飽滿; ( 4 )混凝土延性柱耗能器中延性柱屈服后等效粘滯阻尼系數迅速增大,消耗地震能量的能力增大; ( 5 )混凝土延性柱耗能器中每根延性柱的破壞形態基本一致,表現了良好的共同工作性能。分享友人