sand content 中文意思是什麼

sand content 解釋
含砂量
  • sand : n 1 沙。2 〈 pl 〉 沙灘，沙洲，沙地，沙漠。3 〈 pl 〉 沙粒；（計時用的沙漏中的）細沙。4 光陰，時...
  • content : n 1 容積，容量，含量，【數學】容度；收容量。2 【哲學】內容 （opp form）；要旨，真意。3 〈pl 〉內...
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明： 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化：隨海拔高度上升，機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒，海拔1600m以下出現粘化層；土壤有機質豐富，表層有機碳含量一般在20g kg以上，有機碳含量隨海拔高度升高而相應增加，海拔3500 3700m的灌叢草甸植被下有機碳含量最高；土壤呈酸性或微酸性，並隨海拔上升， ph值略微降低，酸性增強，海拔2700m以上的土壤多呈鹽基不飽和狀態，表明土壤淋溶作用較強， ph值和鹽基飽和度呈極顯著正相關；土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定，土體中sio _ 2含量較高， cao含量較少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ，礦質元素含量的順序依次為： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. The results showed that 5406 actinomyces can improve the wheat seedling ' s height, root system and stalk leaf weight, can increase content of chlorophyll and root system activity in sterilized sand culture

    結果表明，經5406放線菌處理后小麥幼苗株高、根長、根體積、根系及莖和葉片干重、葉綠素含量及根系活力均有不同程度的提高。
  3. A detailed introduction was made to the properties of the wet coated sand suitable for multi - station shell mould shooting machine ; the development of a sort of high strength coated sand with low resin content : the shaping index and wetness adjusting process : analysis and prevention of peel back defect of shells made with overturning hopper process ; test method of peel back resistance of coated sand : pinhole defect analysis of high ni ductile iron shell mould castings and application of anti - pinhole coated sand

    詳細介紹適用於吹砂式多工位殼型機的濕態覆膜砂性能；高強度低樹脂量覆膜砂的研製；濕態殼型覆膜砂的成形性指數與調濕工藝；翻鬥法制殼時的脫殼問題分析和解決辦法；覆膜砂脫殼性檢測方法；高鎳球鐵件殼型鑄造表面針孔原因分析與抗針孔覆膜砂的應用。
  4. Deferrizers and demaganizers are series of products designed by our company for underground water with comparatively high iron and managanese content according to aerating oxidation priciple. in these prducts, packed natural manganese sand in filter is applied as filtering materials, and oxygen in air is applied as oxidants, to make ferrous iron in water oxidized into ferric iron, in a same time, oxidation reaction makes its produced its produced substances left in filtering materials for purposes of deferrization and deman - ganization

    除鐵錳裝置是我公司針對鐵、錳較高的地下水，按曝氣氧化法的原理而設計的系列產品，它是利用過濾器內裝填城然錳砂為濾料，利用空氣中的氧化劑，使水中的二價鐵，同時發生氧化反應使其物進截留在濾料中，從而達到除，除錳的目的。
  5. This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content. to prevent the insufficiency or excess of sand water content, the amount of the first addition is set as 80 % of the total water addition amount. after the first water addition, we adopt ar model to predict the stable value of sand compactibility to shorten the time mixing the sand. each time we add water, the correction coefficient is introduced to adapt to the change in the composition of sand. the experiment shows that the mathematics model not only makes the water content in sand reach the best range within shorter time, but also directs how the sand composition should be adjusted, which can better conform to the actual situation

    分析了影響型砂緊實率控制精度的因素，建立了型砂緊實率-水分回歸系數的動態模型.為防止型砂水分不足或過量，將第一次加水量設定為總加水量的80 .第一次加水后，對型砂緊實率穩定值採用ar模型進行預測，以縮短型砂混制時間.每次加水后，引入修正系數，以適應型砂組成的變化.實驗表明，該數學模型不僅使型砂水分含量在較短時間內達到最佳范圍，同時可指示對型砂組成進行調整，能較好地符合實際情況
  6. 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。
  7. Test mothod for effective bentonite and effective seacoal content in green molding sand

    鑄造用濕型砂有效膨潤土及有效煤粉。試驗方法
  8. The effort of manganese removal was studied and the kinetics of manganese removal was tried to establish. the factors of dissolved oxygen concentration, fe2 + concentration, ph, p concentration and closing of the filter were studied to evaluate their effort for biological manganese removal, and the correlation of residual manganese and oxidation - reduction potential was also discussed. as the iron content of water was high, experiment results showed that the reaction was zero order, as the iron content of water was low, the reaction was first order. the time needed for the cultivation of biological manganese removal was 60 70 days. the filter operated at the filtration rate of 8 10m / h, silica sand of effective size 0. 95 1. 25mm filled the filter to a depth of 1200mm

    試驗結果表明，成熟后濾砂表面濾膜的x射線衍射圖譜與mno _ x ? 5h _ 2o （ x = 1 . 86 ）的x射線衍射圖譜一樣，濾膜成熟后的結構在進水物質不發生變化的情況下不發生變化;合適的碳磷比對生物除錳有明顯的促進作用，試驗條件下的投磷量不會對出水造成二次污染;生物除錳需要亞鐵的參與，亞鐵的存在除了能夠促進微生物分泌胞外酶並刺激其活性外，還通過鐵離子的變價傳遞電子，催化錳離子的氧化反應，從而促進對二價錳的降解。
  9. The mud is swept away and the residual sand content remains to form a beach.

    泥質被沖刷掉，剩下的砂形成海灘。
  10. The organic matter, total n, hydrolytic n were increased, then reduced with the increase of abandoned time. the loss of organic c got up to 59. 4 % in abandoned land. in 0 - 20cm, the sand content of 0. 25 - 0. 05mm was increased gradually, the average content of sand in the abandoned land was up to 76. 84 %, the sand contents of silt and sand was gradually reduced, the soil mechanic compose became coarse

    隨撂荒年限的增加，土壤有機質、全氮、堿解氮等主要養分均表現出先降低后增加的趨勢；撂荒地有機碳的損失平均達到59 . 4 ；在撂荒地表面0 - 20cm范圍內， 0 . 25 - 0 . 05mm粒徑的砂粒含量逐漸增加，各撂荒地砂粒平均含量達76 . 84 ，粉粒和粘粒含量逐漸降低，土壤機械組成出現粗化現象。
  11. The article analyzes the important problems existing in the well completion technologies for drinking - water suppling in salt - water area on the lower shiyanghe river basin, which reduces sand content of well water and avoids mixing the upper salt water and the lower fresh water

    摘要文章分析了石羊河下游鹹水區人飲水成井中存在降低井水含砂量，避免上部鹹水與下部淡水相串兩個關鍵性技術問題。
  12. In the hillslope, d ( ), c ( ) and k ( ) of soil water have high spatial correlation. d ( ), c ( ) and k ( ) are significant affected by soil water content, capillary pore and sand content bulk density and non - capillary pore aperture are significantly affected on permeability rate. correlation analysis indicates that it is significant correlate

    在坡面上，含水量、毛管孔除和砂粒含量對土壤水的擴散率、比水容量和導水率的影響較大;容重和非毛管孔隙對滲透率的影響較大，相關性檢驗達顯著和極顯著水平。
  13. So far as the mixing material for building the earth - rock fill dam with clay core for shiquanhe hydropower station is concerned, the effect from the variation of the sand content for the filter material on the maximum dry density and the relevant parameters are to be determined within the variation area of the mixing mass ratio of ( 46 ~ 54 ) : ( 54 ~ 46 ) through this experiment, due to the max, dry density is largely influenced by the mixing ratio of both the lifter material and the clay and the sand content of the filter material, so as to determine the actual filling compactness of the mixing material of the core

    摘要由於獅泉河水電站粘土心墻土石壩摻合料的最大幹密度受反濾料與粘土料的摻合比例、反濾料含砂率的影響較大，因此擬通過本試驗確定摻合質量比在（ 46 ~ 54 ） : （ 54 ~ 46 ）范圍變化時，反濾料含砂量變化對最大幹密度的影響程度及相關參數，從而確定心墻摻合料填築的實際壓實度。
  14. In order to establish the state standard for wheat flour with enriched nutrients, a theoretical calculation and experimental verification for ah index of wheat flour with enriched nutrients was carried out taking several mineral nutritive strengtheners such as calcium salt, ferric salt and zinc as examples, so as to determine the effect of enriched nutrients in wheat flour on ash content and sand content

    摘要為制定營養強化小麥粉國家標準，以幾種典型的礦物質類營養強化劑（鈣鹽、鐵和鋅鹽）為例，進行了營養強化小麥粉灰分指標的理論計算和實驗驗證，以此確定強化營養素對小麥粉灰分和含砂量的影響。
  15. Standard test method for sand content by volume of bentonitic slurries

    用容積法測定膨潤土泥漿中砂含量的標準試驗方法
  16. A method of measuring sand content in river water

    河水泥沙含量測量方法研究
  17. 1 based on the analysis of sedimentary structure and sedimentary energy, the facies model was founded. pucheng oil field is tightly adjacent to the boundary fault of dongpu depress, and it is easy to develop fan - delta and sub - fan on this location. in fact it is easy to find the sediment supply of the studying area is mainly from eastern high through the thickness map and its sand - content map

    在研究層段共劃分長期旋迴1個、中期旋迴6個和短期旋迴27個（短期旋迴規模太小，僅能在巖心上識別） ，通過測井曲線的基準面識別和對比，確定了地層的分佈，結合基準面旋迴內可容空間的變化，對其沉積演化進行了分析。
  18. Mud sand content meter

    泥漿含砂量測定儀
  19. A formula is proposed for calculating the sand content of different size in the case of matching particle size of sand, thus obtaining the correlation between ultrasonic attenuation and density of solid particles in the pulp, as well as particle size

    提出了在礦砂粒徑尺寸級配情況下的不同粒徑時的礦砂含量的公式，並由此得到了超聲波衰減與礦漿中固體顆粒濃度、粒度之間的關系。
  20. Inspection of grain and oilseeds - methods for determination of sand content of flours

    粉類含砂量測定法
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