極值元素 的英文怎麼說
中文拼音 [jízhíyuánsù]
極值元素
英文
extremal element-
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 。The approximation analysis result of band dipole model is obtained on the basis of the theory of mfl. the electromagnetic distribution feature of the defect in the steel panel is studied by means of simulation. the leakage magnetic distribution of the two defects and four defects plural and the defects in the column differently in the width are also assayed. conclusions that factors affecting flaw magnetic leakage to the panel also affect the column and magnetic leakage bx should be the feature of the flaw identification to several flaws are drawn
在對漏磁檢測原理進行詳細介紹的基礎上，得出了帶偶極子模型的近似解析解，並以有限元數值模擬分析為主要手段，以鋼板上缺陷為對象，分析了各因素對缺陷漏磁場產生影響的不同規律，同時模擬分析了板上平行的兩條裂紋，四條裂紋以及柱體上寬度不同時的裂紋的漏磁場分佈特徵，得出結論:影響板上缺陷漏磁場的諸因素會對柱體上缺陷漏磁場產生同樣的影響;對于多條裂紋，宜用漏磁分量bx作為缺陷識別的特徵量。The mn / sr value considers the mn content for control factors of cathodoluminescence and the relative content of the marine versus terrigenous elements. so the mn / sr ratio is the relatively comprehensive discrimination criterion for controlling the alteration of marine carbonate
Mn sr比值在考慮了控制碳酸鹽陰極發光性的mn含量的同時，兼顧了海相和陸相元素的相對含量，因而是一種較全面的成巖蝕變性判斷標準。Alpine orchard to apple for the quality of raw materials, the introduction of britain, germany, italy and other advanced production equipment and technology, the high - pressure cleaning, squeezing, enzymatic hydrolysis, instantaneous heat disinfection, ultrafiltration clarification, vacuum concentration, aseptic filling process from contain human needs of the various vitamins, amino acids and zinc, iron, copper and other trace elements, and maintain the natural juice taste, nutritional value high
產品簡介:以高山果園的優質蘋果為原料，引進英、德、意等先進生產設備和工藝，經高壓清洗、壓榨、酶解、瞬時高溫殺菌、超濾澄清、真空濃縮、無菌灌裝加工而成，蘊含人體需要的各種維生素、氨基酸及鋅、鐵、銅等微量元素，保持了果汁的天然口味，營養價值極高。According to elasto - plasticity theory, with the help of finite - method program ansys, the paper undertakes the computer analogue tests about the bearing capacity of pile tip arranged by orthogonal principle, and attains the relations of pile - tip bearing capacity to embedment depth, pile diameter, cohesion, internal friction angle and modulus of deformation. by the means of mathematical statistic, regression equation of the ultimate bearing capacity calculated by finite element method is gained through the regression analysis of 81 group data from the computer analogue tests. by comparison and analysis of the values calculated by finite - element regression equation and the values of in situ loading test, the regression equation is gained which calculates the size effect for base resistance of large diameter pile
根據彈塑性理論，運用大型有限元軟體ansys按正交設計理論對樁端承載力進行模擬計算，獲得樁端承載力與樁長（埋置深度） 、樁徑、粘聚力、內摩擦角及變形模量等主要影響因素的關系，並採用數理統計方法，對81組ansys模擬試驗結果數據進行回歸分析，得到有限元法確定樁端極限承載力的回歸公式，並將有限元法回歸公式計算值與現場小壓板載荷試驗值進行比較分析，得到大直徑樁端阻的尺寸效應系數計算公式。The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )
浸入式電加熱器主要用於直接對流體接觸加熱的場合，具有熱交換快，熱效率高等特點，分為水用加熱器、油用加熱器、氣體用加熱器，加熱元件的功率密度：即電加熱元件單位發熱面積上的功率，它是電加熱元件極重要的參數，直接影響加熱器的使用性能及使用壽命，它的取值是一個非常專業的問題，受到許多因素的影響（如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等） 。Separately select and use the slice method based on rigid body theory of ultimate equilibrium and the ai theory based on neural network to justify loess side slope stability and finite element numerical stimulation based on elastoplastic theory to further research the factors of slope failure and deformation mechanism of landslide
分別採用基於剛體極限平衡理論的條分法和基於神經網路的人工智慧理論判別黃土邊坡穩定性；又採用基於彈塑性理論的有限元數值模擬，進一步探討了黃土地區邊坡失穩的影響因素及其滑坡變形機制。The result shows that there are rich essential trace elements and a little harmful elements cd and pb in blackberry lily
結果表明，射干中含有豐富的人體必需的微量元素和微量的有害元素，是一種極具開發和利用價值的中藥植物。Effect of nutrient elements on lead uptake of hyperaccumulators. a little amount nitrogen and potassium can accelerate the growth of spad and plant dry weights, advance the lead uptake of hyperaccumulators. but with the increasing of nitrogon and potassium concentration, the lead uptake of plants droped, and spad and dry weights rose constantly
5營養元素n 、 p 、 k對植物吸收pb的影響少量的n和k會促進富集植物葉片葉綠素值和干重的增加，促進植物對pb的吸收，隨著n和k水平的增加，植物對pb的吸收能力降低，但k的抑制作用不如n的顯著，葉綠素值和干重一直在增加；土壤供p會降低植物對pb的吸收，且下降極顯著。The cathodes both of the prepared tungsten - based barium - tungsten cathode and mixed metal barium - tungsten cathode have, not only high current density, but also a long life, simplified procedure and stable performance, and so on. and we made certain two good additives cr2o3 and ni2o3 that make the cathode performance more excellent
2 ）對不同元素配比的二元和三元混合陰極基底的制備工藝和發射性能開展了實驗研究，在增大發射能力，延長壽命和降低燒結溫度等方面有重要進展，取得了有價值的階段成果。The dominance and properties of the cmos integrated reference were also described, and the research meaning was pointed out. related device theory and process model used in design were described. the temperature related model and the influencing factor of two active devices, subthreshold mosfet and pnp substrate transistor, based on cmos process were analyzed and compared, and pointed out that the pnp substrate transistor was more fit for being the temperature compensating device for bandgap reference
闡述了設計中相關的器件理論與工藝模型，對cmos工藝下的兩種有源器件，即亞閾值工作狀態下的金屬場效應晶體管（ mosfet ）及襯底pnp雙極型晶體管（ bjt ）的溫度模型及其影響因素進行了分析和比較，指明襯底pnp雙極型晶體管更適合作為基準源的溫度補償元件。The characteristic value of the so - called inverse algebraic eigenvalue problem is that under certain restrict conditions against the question, elements of matrix are determined according to eigenvalue or eigenvector. the practical inverse alebraic eigenvalue problem arose in phisical chemistry in the study of molecular structures. it arises in various areas of application in a lot of filelds, such as dispersed system of physical mathematic, design of vibration system of the structure, correct and control, particle nuclear spectroscopy, linear variable control system and so on
所謂代數特徵值反問題就是在一定的限制條件下，根據給定的特徵值或特徵向量決定矩陣的元素，它是在研究物理化學中研究分子結構時發現的。矩陣特徵值反問題在數學物理反問題的離散系統、結構振動系統的設計、校正與控制、粒子物理的核光譜學、線性多變量控制系統的極點配置等許多領域都具有重要的應用。分享友人