sand clay clay 中文意思是什麼
sand clay clay
解釋
用沙紙磨-
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 。 -
One new type double backspin rotor type sand mixing machine passes technique appraisal of qingdao tianheng machinery co., ltd. this machine adopts double rotor configuration researched internationally ; the rotor is installed on different output axis of same reducer, which produces comparative cross cutting speed by using rotors with different speed that makes sands get strong cutting and friction force. therefore, it can reduce clay and quicken sand mixing
一種新型雙逆轉子式混砂機在青島天恆機械有限公司通過技術鑒定，該機採用國際首創的雙轉子結構，其轉子安裝在同一減速器的不同輸出軸上，利用兩個軸的不同轉速使轉子間產生相對交叉剪切速度，使砂子受到的沖剪及搓擦力加強，從而減少粘土團，加快砂子的混合。 -
Detritus usually consists of gravel, sand and clay.
巖屑通常是由砂礫，沙和粘土組成的。 -
The central plain, which is broken in places by low hills, is extensively covered with glacial deposits of clay and sand
被低矮的丘陵分割的中心的平原覆蓋著冰河時期留下的粘土和沙子的堆積物。 -
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 soils ( paleudults ) consist predominantly of light brown fine loamy sand to fine sandy loam changing with depth into a brown sandy clay loam and sandy clay with red mottles
土壤（強發育濕潤老成土）主要為淡棕色細壤質砂土到細砂質壤土，隨著深度增加，土壤變為棕色砂質粘壤土和帶有紅色斑點的砂質粘土。 -
On the other hand, among recently deposited soils of nanjing and its surrounding areas, there are two types of soils with special structure, that is, silty clay and fine sand interbedded strata of nanjing with appearance presenting. thousand layers cake. and nanjing fine sand with schistous grain
在南京及其鄰近地區的漫灘相新近沉積土中存在著兩種具有特殊結構性的土層：呈現粉質粘土和粉砂組合的「千層餅」狀外貌的粉質粘土與粉砂互層土和具有片狀結構的粉細砂。 -
Based on the test of drainage salinity effect in different clay interlayer and the analsis of thickness of drainage salinity layer, the design parameter of effective drainage salinity semidiameter, amount of sand - hole and semidiameter of hole were put forword
通過對不同層位的粘土夾層土壤的洗鹽效果試驗研究，分析了脫鹽層厚度、計劃脫鹽層脫鹽效率，提出了有效洗鹽半徑的概念、砂孔數量及孔徑等設計參數，並制定相應的洗鹽制度。 -
The quality of furan sand castings is usually better than clay sand castings, however, some defects are also very easy take place with furan sand castings such as blow hole, metal penetration, veining, cracking, slag inclusion, hardness too low, surface recarburation, surface sulphuration, nodularity degeneration etc, which were usually caused by improper raw materials selection, improper method design, incorrect moulding or / and core - making
摘要呋喃樹脂砂鑄件質量一般比黏土砂鑄件好，但如果原材料選擇、工藝設計、造型和制芯操作不當，也會產生氣孔、粘砂、脈紋、裂紋，夾渣、硬度不足、滲碳、滲硫和球化不良等鑄造缺陷。 -
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。 -
On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula
應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。 -
Study indicated that establishing salix psammophila checkerboard can effectively keep the earths surface from coarsening, because salix psammophila checkerboard can obviously increase the fine sand and clay sand of soil surface, accounting for 15. 1 %, 18. 3 %, powder sand increased by 1. 8 times
結果表明：設置沙柳沙障的沙丘表層細沙含量比對照樣地提高15 . 1 % 、粘粒提高18 . 3 % 、粉沙含量是對照地的1 . 8倍，說明設置沙柳沙障能夠增加沙丘表層細顆粒含量，有效控制地表粗化。 -
Suqian is ample in mineral resources. its reserve of quartz sand, pottery clay, blue spar and yellow sand ranks among the top of the provincial - level cities in china
宿遷礦產資源豐富，石英砂、陶土、藍晶石、黃砂儲量居全國省轄市之首。 -
The bottom layer is a mixture of sand and clay
最下面的一層是沙和泥的混合物。 -
Five floating roof oil tanks with volume 2 104m3 are designed to be constructed at shuguang pump station possessed by liaohe oil field, which is located at liaohe delta alluvial plain. this engineering filed is featured with complicated topography. the oil tank foundation soil is horizontally - layered, including four layers : medium dense - dense clay, interbedding of find sand and clay, fine sand sandwiching clay and fine sand
位於遼河三角洲沖積平原的遼河油田曙光泵站計劃增建5座2 10 ~ 4m ~ 3浮頂式儲油罐，場區地形復雜，油罐地基土層分佈均勻水平，從上之下主要由中密粉土層、粉細砂與粘土互層、粉細砂夾粘土層和細砂層等4層組成。 -
Silt is a special type of soil which property differs from sand and clay. but silt did not be given sufficient research previously, accordingly, there has not have systematic theory about it by now
粉土為砂性土和粘性土之間的過渡類型，其性質既不同於砂性土，又有別于粘性土，以往人們對它的研究較少，尚未形成系統的理論。 -
A thermal expansivity test device consisting of hating unit, attemperating unit, displacement transducer, recorder and so on, was developed to determine the thermal expansivity of new sand, clay - beaded sand, sodium silicate sand, resin bonded sand with the temperature or isothermally
摘要鑄造用砂熱膨脹性測試裝置，由加熱裝置、溫控裝置、移位傳感器、記錄儀等組成，可實現鑄造用原砂（亦可用於粘土型砂、水玻璃型砂、樹脂型砂等）的隨溫和等溫熱膨脹性測試。 -
Vegetation restoration also resulted in the changes of soil physical and chemical properties, i. e., the contents of organic matter, alkali - hydro nitrogen, rapidly - available potassium and the contents of fine sand, very fine sand and clay were increased significantly, while ph and the content of rapidly - available phosphorus were decreased
植被的恢復使土壤理化性質發生了變化，與恢復前相比土壤中有機質、堿解氮、速效鉀以及細砂、極細砂、粉砂、粘粒含量顯著增加， ph值和速效磷含量降低。 -
The plane strain tests of sand and clay, and the emergence and development of shear bands were simulated numerically by pfc to analyze the stress - strain relationship curves of pfc models and test results under different confining pressures
對砂土和粘性土的室內平面應變試驗及其剪切帶形成和發展進行了數值模擬，分別對比了不同圍壓下顆粒流試樣與室內試驗的應力應變關系曲線，基本再現了砂土和粘性土試樣應力應變關系。 -
Based on the theory of particle flow, particle flow code ( pfc ) model of sand and clay were constituted respectively by adopting the different particle contact constitutive relationships
摘要本文基於顆粒流理論，引入不同的顆粒接觸連接本構模型，分別建立了砂土和粘性土的顆粒流模型。
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