sand ratio 中文意思是什麼
sand ratio
解釋
含沙率-
Research on sand ratio of modified asphalt mixture
對改性瀝青混合料中砂率的研究 -
Plants growing in the semi - fixed sand dunes, on the other hand, were less branchy with a larger number of first - year shoots which were longer, and grew faster ; their leaves were longer and wider with a low length / width ratio. the characteristics of the branching system and leaf dimensions of the plants in fixed sand dunes were rather intermediary between those of the above. the frequency distribution and their frequency in the herb layer the scrubs also varied with habitats
丘間低地的黃柳灌叢當年枝平均長度增加緩慢，短枝條的比例較高，當年枝枝長頻度分佈峰值偏左，葉片短而狹，長寬比大；與之相比，分佈於半固定沙丘的灌叢當年枝平均長度增加較快，長枝條比例較高，葉片長而寬，長寬比小；固定沙丘上的上述特徵大致介於二者之間。 -
Based on the equal strain consolidation model of sand drain, and neglecting the well resistance and the vertical drainage consolidation, a layered model for the nonlinear consolidation of sand drain, which accounts for the geostatic pressure varying along depth and the relationship between the average viod ratio and the logarithm of average effective stress, is presented
摘要基於砂井等應變固結模型，考慮初始有效應力沿深度變化，忽略井阻和豎向排水固結的影響，應用平均孔隙比與平均有效應力的對數關系，建立砂井非線性徑向排水固結的分層計算模型，並求得常荷載作用下的徑向排水固結解析解。 -
2. the structure of purple soil is meliorated by sabaigrass. when contrast to bare land treatment and natural wild grassland treatment we knew that sabaigrass treatment and grass tree solid plating treatment reduced soil bulk density, enhanced soil capillary porosity, non - capillary porosity and porosity ratio, decreased soil sand grain content, enhanced soil clay grain and silt grain content so as to reduced the dispersal degree of soil, improved the aggregate capacity of soil, increased the amount of soil aggregate structure, meliorated the water permeability of soil, accelerated the form of good soil structure
龍須草能改善紫色土的土壤結構龍須草純種植被和林草立體種植植被能不同程度地降低土壤容重，減少土壤砂粒含量，增加土壤的毛管孔隙度、非毛管孔隙度和孔隙比，以及增加粉粒含量，從而降低土壤分散度，提高土壤團聚性，增加土壤團粒結構數量，改善土壤的透水性，促進良好土壤結構的形成，最終提高土壤的蓄水保肥性能，增強土壤的抗蝕性和抗沖性。 -
The single - stage hammer crusher are suitable used to crushing ordinary fragile ores of the compressive strength no more than 200mpa, such as limestone, gypsum, coal, marl, sand - shale etc. this series product features of high crushing ratio, even product graininess, simple construction, reliable operation, easily maintenance, economical running cost etc., so are widely used. hammer crusher models hammer crusher max
錘破系經高速轉動的錘體與物料碰撞面破碎物料，錘式破碎機具有結構簡單，破碎比大，生產效率高等特點，錘式破碎機可作干濕兩種形式破碎，錘式破碎機適用於礦山水泥煤炭冶金建材公路燃化等部門對中等硬度及脆性物料進行細碎。 -
The daling river is a river of much bedload. the average of the loss sand can reach 21434. 3 thousandston, and the ratio is 18. 08 kg / m3. to this day, the ratio of sandiness by measuring in the biggest broken surface is 172 kg / m3. the baishi reservoir lies in the city named beipiao which in the middle reaches of the daling river in liaoning province, the income of the reservoir from the trunk stream is 11457 thousandston, and from the branch of the river is 1160 thousandston
大凌河是個多沙河流，多年平均懸移質輸沙量可達2143 . 43萬噸，平均含沙量為18 . 08kg m ~ 3 ，實測最大斷面含沙量為172kg m ~ 3 ，白石水庫位於大凌河中游的遼寧省北票市，年入庫沙量，幹流為1145 . 7萬噸，支流?牛河為1160萬噸。 -
Mz, a, sk, kg and sc / d ( ratio of the sum of silt and clay to sand ) of fluvio - lacustrine, palaeosols and aeolian sands constitute an interlocking, multi - fluctuation process curve with peak and valle y values : the < & value of mz, o and sk values often increase accordingly from aeolian sands to its overlying fluvio - lacustrine facies or / and palaesols, the kg value heightens, too, and the sc / d value also basically consists with its change steps
河湖相和古土壤與風成砂的mz 、 、 sk 、 kg以及sc d （粉砂粘土之和與砂的比值）構成一峰谷交替、犬牙交錯的鋸齒狀多波動過程線：常常是由風成砂至上覆河湖相或和古土壤， mz的值、 、 sk值相應增大， kg相應增高， sc d值亦與之變化步驟基本一致。 -
Our research obtains absolute fluent incipience and general incipience information of sand thickness field and velocity field. firstly proposed a conclusion that the ratio of incipient efficiency on fluent and general incipience varies with wind speed
本文分析了純流體起動和綜合起動條件下沙粒的濃度場和速度場信息，發現了兩種起動的效能比隨風速的變化關系。 -
Based on the principles of designs of self - compacting and light aggregate concrete mix, sclc of lc30 - lc50 was developed by using absolute volume method. the main factors affecting the workability of sclc were studied by adopting the modified l - 800 fluidity instrument. the results indicate that the key techniques insuring good workability of sclc are about 30 % first - grade fly ash, about 50 % volume sand ratio, 2 % ~ 6 % dosages of silicon fume and compounded superplasticicizers with viscous ingredient
採用改進l - 800流動儀，研究了影響lc40自密實輕骨料高性能混凝土工作性的主要因素，結果表明：粉煤灰摻量保持30左右，硅灰摻量為2 6 ，體積砂率為50左右和摻加具有粘塑組分的復合高效減水劑是保證sclc拌合物具有較好工作性的關鍵。 -
The test results show that the drawing interval of 1. 5 m is helpful for controlling dead - unconsolidated thin sandstone of coal seam roof and reduce sand ratio of drawn top - coal
試驗結果表明，放煤步距採用三采一放有利於控制頂板極鬆散細砂巖，降低放出頂煤的含砂率。 -
Under different sand ratio, the relationship between water cement ratio and 28 day compressive strength is researched and the coefficient of recycled concrete is induced
在不同砂率下，分析了再生混凝土28天齡期抗壓強度與水灰比之間的關系，並回歸分析得出了再生骨料系數。 -
In order to study the effect of sand ratio ( s / a ratio, fine aggregate volume / total aggregate volume ) on the elastic modulus of self - compacting concrete ( scc ), concretes with various s / a ratios were cast and tested
摘要本研究主要探討混凝土含砂率（ s / a ，細骨材體積/總骨材體積）對流動化混凝土（ scc ）彈性模數的影響。 -
For the mixing proportion design of marine engineering high - performance concrete, the strength and durability, as well as raw material performance, water - binder ratio, sand ratio, and water quantity shall be designed synthetically
海工高性能混凝土的配合比設計應充分考慮強度和耐久性，並對原材料的性能、水膠比、砂率、用水量等進行綜合設計。 -
Efficiency of permeable pile dike is closely related to water - sand ratio in upstream flow, direction of the coming flow and seepage rate. this paper investigates mechanism and effect of flow control and aggradation using hydraulic modeling and theoretical analysis. it is shown that suitable seepage rate can help aggradation and suitable coming flow direction can help to govern the flow trend
研究結果顯示，來流和來沙一定的條件下，透水率在適當的范圍內有利於壩后緩流落淤，入流角在一定范圍內對控導河勢有明顯作用，不同方案組合所對應的緩流落淤效果和控導河勢作用具有一定的差異性。 -
The foundation mortar layer for bearing support is used as supporting foundation when laying the piping system and the mixing ratio of cement and sand should be about 1 : 3. be sure to level it well and give perfect curing
起支持作用的基礎灰漿層在鋪高熱炕供暖管時起支撐作用，灰漿的混和比為水泥：砂1 ： 3 ，施工時要可能保持水平，需要徹底養護。 -
The influence factors of brittleness of hslc such as w / b ratio, sand percentage, type of aggregate and binder constitution are analyzed by the experiment : in order to improve the toughness of hslc, we study the function of fiber, polymer, aggregate and low - layer steel fiber on improving toughness, and explain the mechanism of improving toughness of them
最後採用這四種技術復合增韌，得到了和理想結構模型相符的高強高韌性輕集料混凝土，較基準輕集料混凝土抗壓強度增加16 . 3 ，抗彎強度增加97 ，沖擊韌性提高171 . 9 ；劈裂抗拉強度增加52 . 6 ，韌性指數提高19 . 2倍，並且具有耐久、經濟等優良性能。 -
This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too
本文採用高強頁巖陶粒，摻加高效減水劑配製大流動性結構輕集料混凝土，討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響；系統研究了高強陶粒在常壓和壓力下的吸水規律；研究了影響大流動性結構輕集料混凝土勻質性的因素，提出了解決大流動性結構輕集料混凝土分層離析的具體措施。 -
The influence of the material composites factors, such as fiber volume fractions, fiber aspect ratio, cementitious - sand ratio and the admixture for interface tailoring, on the properties of pva - dfrccs is studied. these properties that have investigated include workability, mechanical properties, deformability and durability
研究並分析了材料組成參數（ pva纖維體積率、纖維長徑比、界面改性劑和砂灰比等）對高強高彈pva纖維增強水泥基材料（ pva - dfrcc ）的工作性能、力學性能、變形性能及耐久性的影響。 -
Secondly, preparation of reactive powder concrete with air quench steel slag and its performance are mainly studied through experiment. the results show that : ( 1 ) when binder - to - sand ratio is 1, silica fume percentage of binder is 15, and steel fiber percentage in volume is 4, reactive powder concrete prepared can get best overall performances
其次，作者主要對鋼渣活性粉末混凝土配製及其性能進行了試驗研究，結果表明： （ 1 ）膠砂比為1 : 1 ，硅灰摻量為15 ，鋼纖維摻量為4時所配製的活性粉末混凝土的綜合性能比較理想。 -
Based on the productive experiment on heihe dam site, during april to august 2002, site experiment was made on gongboxia hpp dam site, bjy - 40 extrusion curb placing machine was determined to be applied into gongboxia project, the batch ratio is : cement 80kg / m3, sand 651kg / m3, small stone 1449kg / m3, and sand ratio 31 %, w / c ratio 1. 31, admixture 3 %
在生產性試驗的基礎上， 2002年4 8月，在公伯峽面板壩現場進行了擠壓邊墻施工各個環節的試驗，通過試驗，確定公伯峽面板壩使用陜工局西安理工大學工程項士學位論文水利機械廠研製的bjy 40型混凝土邊墻擠壓機進行固坡施工，其混凝土配合比為：水泥80kgb 』 ，砂651kgb3 ，小石1449kgb 』 ，砂率31 ，水灰比1
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