持水率 的英文怎麼說

中文拼音 [chíshuǐlǜ]
持水率 英文
specific retention
  • 持 : 動詞1 （拿著; 握著） hold; grasp 2 （持有; 保持） keep; hold 3 （支持; 保持） support; maintain 4...
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. We need to keep the fiscal reserves at a satisfactory level to meet the cash flow needs of the government in its day to day operation ; to cope with contingencies arising from any downswing in the economic cycle and from unforeseen external events ; and to underpin the stability of the exchange rate for the purpose of enhancing monetary stability

    我們需要把財政儲備維持在適當水平，以應付政府日常運作上的現金流量需求；在經濟周期回落或外圍出現突發事件時應急，以及支持匯率，以維持金融穩定。
  2. The threshold value of soil water contents for photosynthesis and stomatal resistance is about 14 ( 0g ), i. e., 60 65 of field capacity

    棉花的光合速率和氣孔阻力隨土壤含水量變化的閾值約在14土壤含水量水平，該閾值相當於田間持水量的60 65 。
  3. Therefore both non - intensive temperature procedure and shorter treatment time ( especially in the period when moisture content is still high for xero - labile materials ) applied in processing are suggested to enhance quality retention

    因此為保持乾燥后產品的質量，常採用較溫和的乾燥條件，以及減少物料在高含水率階段的乾燥時間。
  4. Sim cards activate and are used as identification for handsets, as well as storing phone numbers. vodacom is south africa ' s biggest cell phone provider, followed by mtn and unlisted cell c

    據統計，隨著生活水平的提高，作為非洲最為富有的國家，目前南非公民手機的持有率已超過50 。
  5. Washing can remove dirt from papermaker ' s felt, recover its elasticity and thickness, improve its straining ability, water content and porosity, and prolong service life

    摘要洗滌可以除掉黏附於毛毯表面及積存在毛毯內的污垢，恢復毛毯的彈性和松厚度，從而保持毛毯良好的濾水性、含水率和透氣度，延長毛毯的使用時間。
  6. 2. there were statistically differences between the groups in acidity and compressive strength changing at the first 6 weeks after degradation test, mass loss and intrinsic viscosity changed significantly in whole period, volume contract happened after the 2nd week ( p < 0. 05 ). 3. after modified with alginate calcium, the scaffolds have the much higher hydrophilic ability, water uptake reached 50 - 60 % ( v / v ) from 0. 5 to 24 hours, no significant difference found between the inner groups

    經過藻酸鈣改性后的支架親水性能得到良好改善，體積含水量在24小時內保持在5o朋之間，區組、組內比較無顯著性差異中勸刀5 ） ；酒精處理后吸水率達到個12之間，顯著高於對照組的2 10 ，區組和組內比較均存在顯著性差異（卜
  7. According to relative criteria, the performance of ash - jd such as ratio of water - reducing, ratio of compressive strength, effect of enhancing strength, ratio of bleeding, air entrainment content, effect of keeping slump value, compatibility with cement, resistance to concrete shrinkage and damage by freezing and thawing and impermeability to water etc are all equal to the traditional aminosulfonic - based superplasticizers, and the ratio of performance to price is better than naphthalene series superplasticizers

    按照相關標準，對產品進行了測試，所開發的低成本改性氨基磺酸鹽高效減水劑ash - jd的各項性能如減水率、抗壓強度比、增強效果、引氣性、坍落度保持效果、與水泥適應性、收縮性能、抗凍融性能、抗滲性能等相當于傳統氨基磺酸鹽高效減水劑，性能價格比優于萘系高效減水劑。
  8. Under the opening economy condition, the exchange rate not only is a variable that affects the trade revenue and expenditure, but also becomes an important variable that affects macroeconomic policy of a country, international balances of payments, the domestic price level and the employment. exchange rate system influences monetary policy ultimate objective, and the currency supplies are not easy to control because that our country forces to complete a sale collects and the maintains exchange rate stably

    在開放經濟條件下，匯率不僅是影響貿易收支的變量，而且成為影響一國宏觀經濟政策、國際收支平衡、國內物價水平和就業的重要變量。匯率制度影響貨幣政策最終目標，而且由於強制結售匯制度和維持匯率的穩定造成了貨幣中介目標貨幣供給量的內生性增強，外匯占款成為貨幣供給的主要渠道，大量外匯占款還改變了貨幣供給結構和貨幣政策傳導過程，加大了貨幣政策的操作難度。
  9. This theoretic model employs the basic idea of correlation measurement, achieve the density wave speed by the correlation of the signals of upper and lower sensors, and get the total flow rate and water cut through the theoretic relationship of density wave speed and total flow rate as well as holdup with the help of drift flux model so as to accomplish the oil / water two - phase flow measurement at last, using the limited available experiment data, the theoretic model has been simplified into an applicable linear alternative which is suitable to homogeneous oil / water two - phase flow measurement to accomplish the oil / water two - phase flow measurement using the density wave phenomena is of highly theoretically valuable for density wave theory research as well as oilavater two - phase flow measurement research. to develop new type oil / water two - phase flow instrumentation based on this theoretic measurement method will be very applicable and promising

    在此基礎上，針對穩態密度波理論提出了基於密度波理論的油水兩相流測量理論模型，該模型以密度波傳播理論作為基礎，通過上下游傳感器信號相關獲得密度波傳播速度，利用密度波傳播速度與總流量以及持相率的理論關系結合漂移模型來求解總流量和含相率，實現油水兩相流的測量，在理論分析的基礎上，在實驗資料有限的條件下，對基於密度波理論的油水兩相流測量理論模型作了極限的簡化，提出了本文油水兩相流測量理論方法應用在測量均勻油水兩相流中的實用線性模型。
  10. The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell

    對磺化膜的研究分析表明：膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量，且接枝苯乙烯相互間的位阻效應對膜性能影響很大；膜的性能可與nafion膜相比較；質子在膜中的傳導遵循「似液體」質子傳導機理；電滲析與擴散作用使膜保持水平衡。
  11. This product to dongshi kong, white sand getting cream - coloured density loose, high marble renovate and polishing treatment when maintaining of absorbing water etc. speciality, treated, can form the brilliant hard mere membrane layer on this kind of marble surface, improve the density of stone material surface and wear - resisting degree, the color and luster is even, and the luminance keeps time long, the professional stone material to turn over and maintain personages special - purposly

    本品專業對孔洞石、白砂米黃等密度疏鬆、吸水率高的大理石翻新及養護時拋光處理，處理后，可在該類大理石表面形成晶硬光膜層，提高石材表面密度及耐磨度，色澤均勻，且光亮度保持時間長，系專業石材翻養護人士專用。
  12. Laws about volumetric moisture content changes and wetting deformation in unsaturated zone are analysed according to different rainfall intensities and duration by saturated - unsaturated seepage theory in this text

    摘要運用非飽和滲流理論分析了不同降雨強度和降雨持續時間對土壩非飽和區含水率變化規律。
  13. The result shows soil masses in surface layer reach saturation more easily under great rainfall intensity and long - lasting rainfall, at the same time, there are big infiltration depth and influence of wetting deformation

    結果顯示，降雨強度越大、降雨持續時間越長，非飽和區土體含水率變化也大，壩坡表層土體較容易達到飽和，並且降雨影響深度也大，對壩坡表面濕化裂隙的產生及壩坡穩定性影響大。
  14. The measurement of oil / water two - phase flow is primarily accomplished by the combination of total flow rate and holdup measurement, and at present, the rotator flowmeter is used to measure the total flow rate. since the rotator flowmeter has movable parts, which makes its responsibility behave nonlinearly under poor environment of me under hole whose fluids have very complex and changeful characteristics and affects the measurement precision. what ' s more, the widely used centralized measurement instrumentation meets problems in oil wells characterized with high production or high water cuts

    通常油水兩相流測量主要是通過總流量和持率的測量組合來完成的，目前在總流量的測量中主要使用的是渦輪流量計，由於渦輪流量計具有可動部件使其在流體特性復雜多變的惡劣井條件下的響應呈非線性變化規律，影響測量精度，此外，普遍採用的集流型測試儀器在高產井及含水率高的油井中使用也遇到困難，為此，一種新型的適合非集流型點測的測試方法和測試儀器亟待發展和推廣。
  15. Throug the study on irrigation quota and irrigation times for licorice root planted in arid sandy land of middle ningxia, the result shows : by increasing irrigation frequency and irrigation fixed quantity properly, it can play a positive role in the conserving and increasing water - holding capacity in arid - belt sandy area

    摘要通過對寧夏中部乾旱帶沙地種植甘草的不同灌水定額及次數的研究，結果表明，適當的增加灌水次數和灌水定額對于保持和增加乾旱帶沙壤土持水率具有積極的作用，有利於植物的生長發育。
  16. ( 3 ) the key link in establishing agroforestry is to select fine plant species in accordance with local natural condition. to make full use of the coexistence and to avoid rejection between different species is very important in obtaining the utmost benefits. ( 4 ) agroforestry systems with rational structure could conserve soil and water, ameliorate soil property, raise land use efficiency and increase the system productivity and achieve significant ecological, social and economic benefits

    另外在物種選擇時要做到適地適樹，並且要與當地主導產業結合，產生規模效益， （ 4 ）良好結構的農林復合經營系統能夠保持水土，改良土壤，提高土地利用率和系統生y兩南農業大學碩十學位論文產力，獲得更好的生態、社會和經濟效益。
  17. The federal open market committee decided today to keep its target for the federal funds rate at 5 - 1 / 4 percent

    聯儲局維持利率不變，這已是連續六次會議維持利率在現水平，利率見頂已是不爭的事實。
  18. Measuring unsaturated hydraulic characteristic parameters, such as capillary soil water, saturated soil moisture, field moisture, saturated conductivity etc., is not only expensive but also accuracy uncontrolled

    測量非飽和帶水力特性參數：毛管上升水、飽和含水率、田間持水率、給水度、飽和滲透系數等，即費時、費力又難以保證試驗精度。
  19. In view of the problem of three - phase flow interpretation, a method for applying grey theory and optimization technique to processing three - phase producing profile is presented

    該方法以滑脫模型為基礎，建立極小化目標函數及視流體速度（流量） 、密度、持水率、溫度和壓力等測量參數的理論響應方程。
  20. At the condition of constant salt content ( total ion content ), if the water mass fraction in the substrate is lower than 50 %, its ec is determined by both the salinity and the moisture of the substrate

    試驗結果表明：在保持基質鹽分（離子總量）水平不變的條件下，若基質質量含水率低於50 % ，則電導率值受基質內離子含量和基質水分的雙重影響。
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