用水量 的英文怎麼說
中文拼音 [yòngshuǐliáng]
用水量
英文
consumption of water-
As populations increase, the demand for water grows accordingly.
隨著人口的增長,用水量也相應增加。Estimating surface water and ground water quantities of guanzhong irrigation area in different aridity year, forecasting using water quantities
針對不同乾旱年份對關中灌區地表水及地下水資源量進行估算,對關中灌區用水量進行預測或制定。Before decocting , have the water two to three centimeters above the immersed herbs
每次煮中藥的用水量以液面淹過藥材2 ~ 3厘米為好。Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. it takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the pga model on optimal design of water supply networks
考慮到峰谷電價、用水量變化曲線及用水可靠性因素的影響,分別建立了以最高時流量設計管網的模型和以期望時流量設計管網的模型,以年費用折算值加上清水池年造價折算值為目標函數,以連續性方程、管中流速和鑄鐵管耐壓值等為約束條件,進行并行遺傳演算法對給水管網優化設計的實現。The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete
研究結果表明,水泥的品種和用量是影響混凝土收縮值的主要因素之一,當混凝土中水泥用量超過470kg / m ~ 3時,混凝土的收縮值超過400 10 ~ ( - 6 ) ,在約束狀態下存在高開裂風險;採用細砂使混凝土單位用水量顯著提高,收縮值也大幅增加;優質粉煤灰總體上能抑制混凝土的收縮,以超量方式摻入其抑制作用更加明顯,但粉煤灰混凝土早期的粘聚性較差,應注意養護,以免失水產生龜裂;早強減水劑和緩凝減水劑都會使混凝土收縮值增加;膨脹劑只能補償混凝土部分收縮,同時受緩凝劑和粉煤灰的抑制,而且膨脹使混凝土的體積安定性增加了不確定因素,膨脹劑不是解決混凝土收縮裂縫的良方。Hygienic standard for water consumption in rural areas
農村生活飲用水量衛生標準A loss in volume will occur if infiltration takes place.
如果發生了滲潤作用,水量就會減少。Two aspects of the problem are discussed : one is that lift irrigation is no need when abstraction volume capability of canal head can meet the demand ; the other is that lift irrigation is in need when abstraction volume capability of canal head can not meet the demand
它包括兩個方面:一是當渠首可引水量能滿足灌區灌溉用水量時,則不需要提水灌溉;二是當渠首可引水量尚不能滿足灌區灌溉用水量時,則需提水灌溉來補充灌溉用水量。By maintaining workability, but at a lower water content, concrete strength may be increased without the need for further cement addition.
保持工作度不變,在低用水量時,不必增加水泥用量,混凝土的強度也能增加。Got a high or low water consumption notice from the water supplies department
為甚麼會收到水務署發出的高/低用水量通知書?The activatory coal gangue powder ( acgp ), ground cement clinker and natural gypsum are mixed by different ratios to prepare blended cement specimens, and its mortar compressive strength performance, water usage for standard consistency, and flowability of mortar are investigated
摘要將經燃燒等過程進行活化處理的煤矸石細粉與磨至一定比表面積的水泥熟料及天然生石膏混合均勻,製成了活化謀矸石粉摻量比例不同的多組混合水泥,並對其膠砂強度性能、標準稠度用水量、膠砂流動度進行了實驗檢測。The result of a case study demonstrates that the proposed flood limit water level of biliuhe reservoir can go up suitably, along with the step - by - step raise of water supply
計算結果表明,隨著大連市用水量的增加,碧流河水庫汛限水位可適當抬高。Comparison of the city water consumption short - term forecasting methods
城市用水量短期預測方法的比較On this base, a more precise volume model of concrete is established and one conception of dry mortar volume is brought forward. at the same time the author absorbed the concept of the best ratio between paste and aggregates and used mathematical method to induce the formulas of water content and ratio between fine aggregate and coarse aggregate in concrete : ratio between fine aggregate and coarse aggregate : if the two formulas are connected with the classical rule of water cementitious materials ratio ( bolmy formula ), the contents of all materials in concrete can be determined completely by calculation and overall calculation proportioning is realized
在此基礎上建立了普遍適用的更精確的混凝土體積模型,提出了「干砂漿體積」概念,同時吸收國外關于最佳漿集比概念,用數學方法推導建立了混凝土用水量和砂率的計算公式:用水量公式:砂率公式:這兩個公式結合傳統的水膠比定則(保羅米公式) ,即可全面定量地確定混凝土的所有組成材料的用量,實現混凝土的全計算配合比設計。To this area precipitation materials for many years, evaporate materials, surface flow materials, hydrometeorological materials, hydrogeological materials carry on exhaustive analysis, have analysed the state of water resource of the sand district, proceed from the heat of the earth ' s surface is balanced, water yield balanced basic theories, combine the amount of regional water resource set up of the materials, such as scene, hydrology, soil of the sand district, etc. and estimate models, have calculated the surface water, groundwater of this area, has carried on models to examine according to the real data, and has predicted to the state of water resource under different climate change scenes of future that analyse. have put forward the scheme that the water resource in this area utilized rationally, use the non - linear motive force model to predict the precipitation, utilize the materials of actual observation, the natural supply amount of calculating out groundwater of sand ground of balanced principle of the amount of water used at the same time, and can exploiting amount predict to groundwater, district of sand,
本文以寧夏半乾旱地區鹽池縣沙地水資源為研究對象,對該地區多年降水資料、蒸發資料、徑流資料、水文氣象資料、水文地質資料進行了詳盡的分析,分析了沙區的水資源狀況,從地表熱量平衡、水量平衡的基本理論出發,結合沙區的氣象、水文、土壤等資料建立了區域水資源量估算模型,計算了該地區的地表水、地下水,根據實際資料進行了模型檢驗,並對未來不同氣候變化情景下的水資源狀況進行了預測分析,提出了該地區水資源合理利用的方案,運用非線性動力模型對降水量進行預測,同時利用實際觀測資料,運用水量平衡原理計算出沙地地下水的天然補給量,並對沙區地下水可開采量進行預測。In order to obtain the strontium titanate nanocrystalline powers materials with small grain, high purity and homo - geneous grain size distribution, the effect of water, waiter - free acetic acid, gel temperature, heat treat temperature and so on were researched
為了制備出晶粒小、材料純度高以及粒徑分佈均勻的納米鈦酸鍶粉體材料,研究了用水量、冰醋酸加入量、凝膠溫度和煅燒溫度等工藝參數對制備納米鈦酸鍶粉體材料的影響。Now you can turn your hot water heater down to 50 c ( 120 f ) and see hot water costs go way down
只要安裝低流量的蓮蓬頭和水龍頭,就能節省一半的用水量,而且效果一樣。Also speaking at the ceremony, the director of water supplies, mr william ko chan - gock, said the service reservoir was planned and designed in - house by wsd. " this new service reservoir serves to provide the balancing storage and the breakdown storage including the fire - fighting reserve to its supply zone, " mr ko said
高贊覺說:新的配水庫既可提供儲水量以緩沖用水量的波幅,亦可儲存應急供水,為供水區內的用戶供應食水,包括后備消防供水。After organizing the dynamo program, simulating the sd model, it has get the result that the using dimension area of soil is 5. 72 104hm2 in the 30 years and the relation of the irrigating water volume for farmland, forest - sod land, the ecological water volume, other using water volume and the using area of soil
用dynamo語言編程,藉助于計算機模擬模型,對綠洲sd模型進行運算,求解得出額濟納綠洲未來30年土地開發規模為5 . 72 10 ~ 4hm ~ 2 ,並計算出相應農田灌溉用水量、林草灌溉用水量、生態用水量,以及各類用水量與土地開發規模的關系。Then some optimal models of water supply networks are enumerated and some factors which can influence the optimal results are analyzed such as the efficiency of pump station, the temporal value of fund, the curve of water consumption and the coefficient of water supply energy and so on
接著,列舉給水管網優化設計的數學模型,並分析影響目標函數優化結果的各種因素,例如泵站效率、資金時間效率、用水量變化曲線、供水能量變化系數等。分享友人