純鐵體 的英文怎麼說

中文拼音 [chúntiětǐ]
純鐵體 英文
ferroferrite
  • 純 : 形容詞1 （純凈; 不含雜質） pure; unmixed 2 （純粹; 單純） simple; pure and simple 3 （純熟） skil...
  • 鐵 : Ⅰ名詞1 （金屬元素） iron （fe） 2 （指刀槍等） arms; weapon 3 （姓氏） a surname Ⅱ形容詞1 （形容...
  • 體 : 體構詞成分。
  1. Edge of the granule image by video is the key of its image partition, the article tries to carry through a deeper research on image partition at the same time. granule is made up of savageness mater and industry material ( including of rock, sand, earth, atomy, steel, china, concrete, ink powder, magnetism powder, light fine and tiny powder used silicon, cell etc. )

    顆粒是構成天然物質和工業材料（巖石、礦石、沙子、泥土、塵埃、鋼鐵、陶瓷、水泥、墨粉、磁粉、光纖和料封裝材用高純硅微粉、細胞等）的基本單元，顆粒尺寸（粒度）是顆粒的首要特徵和粉體材料的第一指標。
  2. The interstitial net and aggregates may be of solid sulfide but most contain magnetite and silicate in widely varying proportions.

    粒間網線及集結體可以是純硫化物，但大多數含有不同比例的磁鐵礦及硅酸鹽礦物。
  3. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  4. The plasmid plncxhlf which is combining with 2366bp human lactoferritin ( hlf ) cdna complete sequence and 800bp regulating sequence upsteam by the - lactoglobulin gene promoter is prepared by normal steps. then it is used in the following experiments. the recombinant plasmids plncxhlf were introduced into mouse mammary tumor cell line ma - 782 by liposome entrapment

    本研究將含有人乳鐵蛋白（ hlf ）基因2366bpcdna序列完整序列和800bp的奶山羊-乳球蛋白基因5 』端調控序列的乳腺特異表達重組載體plncxhlf按常規方法提取、純化、 pcr 、酶切鑒定后，用於細胞表達和精子介導轉基因動物的研究。
  5. By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion

    由此得出結論，在非線性磁場計算中：採用迭代法的情況下，在各迭代循環之間進行磁導率修正時，一個欠鬆弛迭代過程是必需的；對永磁體中的等效電流修正時可以不作欠鬆弛迭代；在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值，會使得插值求出的磁導率在該磁飽和值附近有一突變，這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中，由於微波管磁路比較復雜，作者認為磁體的工作點並不能很好地反映磁體的工作狀態，而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況；要表示磁系統設計好壞的程度，則用磁能利用的效率為標準更好。
  6. Methods for analysis of high purity copper cathode cu - cath - 1 - method for determination of chromium, cobalt, iron, nickel and zinc by discrete volume nebulization atomic absorption spectrophotometry

    高純度銅陰極cu - cath - 1分析方法.第2部分:採用不連續體積噴霧原子吸收分光光度法對鉻鈷鐵鎳和鋅的測定方法
  7. With purple clay and minifanshi stone as raw materials, it provides 58 trace elements, such as fe, k, ca, zn, na and mg, which are useful and healthy for human beings

    產品採用純天然紫砂及麥飯石作為原料，其瓷體含有純天然的礦鐵、鉀、鈣、鋅、鈉、鎂等五十八種人體所需有益健康的微量元素。
  8. The preliminary studies showed that they were a nifh or a nife mofe protein crystals

    和dj ；的缺失femocoto鐵蛋山的純化、特吐鑒定及結晶研究的晶體。
  9. Through adding a small amount of sulfur powder into solid ferrocene precursor, we fabricate high purity, uniform and straight carbon fiber arrays that can extend to several millimeters by the floating catalyst method

    摘要本文通過在固體二茂鐵前驅體中添加少量硫粉，利用浮動催化化學氣相沉積法制得了高純度，直徑和長度均一、且筆直定向、長達數毫米的碳纖維陣列。
  10. Meanwhile, in the experimental work, the scope of the equation that reveals the relation between the magnet force and the working distance is defined definitely. different materials of the magnet core are compared in terms of their influence to the valve. however, it is only initiatory, more work needs to be done in the future

    同時，還採用試驗研究的手段深入分析了電磁閥工作間隙與電磁吸力之間的關系，明確了吸力公式的應用范圍，同時，在不同材料的對比試驗中，分析了磁性能較好的鐵氧體和鐵鉻合金以及工業純鐵對電磁閥工作性能的影響，對合理確定電磁閥鐵芯的製作材料進行了初步的探討。
  11. The powder synthesized by co - precipitation has many advantages such as fine crystal grains, good homogeneity and purity, high activity, and these favor the solid phase reaction. so the magnetic properties of the samples were better than that of those prepared by conventional oxides methods

    共沉澱法制備的粉料具有晶粒細小，均勻性好，活性高，純度高等特點，這些特點有利於固相反應，能夠得到性能優良的鐵氧體材料。
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