金屬分佈比 的英文怎麼說

中文拼音 [jīnzhǔfēnbùbǐ]
金屬分佈比 英文
metal distribution ratio
  • 金 : Ⅰ名詞1 （金屬） metals 2 （錢） money 3 （古時金屬制的打擊樂器） ancient metal percussion instrum...
  • 屬 : 屬名詞1 （類別） category 2 [生物學] （生物分類系統上所用的等級之一） genus 3 （家屬; 親屬） fami...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 金屬 : metal
  1. On the bases of the galaxy evolution theory, we use the therotical chemical evolution model of three zone ( such as halo, thick disk and thin isk ) and multi - phase ( diffuse gas, molecular clouds, stars of both low and high mass, the remnants ). by comparing with the observational constraints, such assurface densities, age - metallicity relation, g - dwarf metallicity distribution in the solar neighbourhood and the correlation between [ a / fe ] and [ fe / h ], supernovae rates, infall rates. the rationality of the model is verified. based on the theory model, we calculate the abundance of neutron capture element

    本文正是在銀河系化學演化的基礎上，利用銀河系的三成分（ threezone ） （即暈、厚盤和薄盤）多相（ multi - phase ） （氣體，分子云，大、小質量恆星以及剩餘物質）的化學演化的理論模型，通過與觀測約束（質量面密度、場星的年齡-金屬豐度關系、太陽附近g矮星金屬含量分佈函數、三成份的特徵量、元素的星系化學演化、超新星的爆炸率、內落速率等）的比較，來檢驗模型的合理性。
  2. In this paper, the basic characteristics of neilingding island ? s flora and their relationships with the neighboring floras were studied. the results show : ( 1 ) the vascular flora of neilingding island consists of 127 families, 367 genera and 551 species, of which 38 species of 25 genera and 20 families belongs to pteridophyta ; ( 2 ) the typical families of seed flora are lauraceae, rubiaceae, apocynaceae, annonaceae, euphorbiaceae, moraceae, aquifoliaceae, rutaceae, araliaceae, myrsinaceae, urticaceae, menispermaceae, araceae, palmae, etc. most of them also are the basic elements of cathaysian flora ; ( 3 ) 342 genera of seed plants in neilingding island can be classified to 13 types according to wu zheng - yi ? s " areal types of chinese genera of seed plant " ; the dominant geographical elements are pantropic genera ( 36. 05 % ), old world tropic ( 12. 54 % ), tropical asia ( 11. 60 % ), the total tropical elements made up to 84. 90 % of the total number of genera, but the typical and specialized tropical elements are scanty. most of them mainly distributes to sub - tropic or even to temperate zone ; ( 4 ) comparing the floristic composition of neilingding island with those of the neighboring regions, they is closely related to the flora of hong kong which is situated to the east of neilingding island. they all are belonged to the south china province of cathaysian kingdom

    通過對廣東內伶仃島的維管植物區系進行全面考察、採集、鑒定和研究，結果表明: （ 1 ）共有野生維管植物127科367屬551種，其中蕨類植物20科25屬38種，種子植物107科342屬513種， 12種為廣東新記錄; （ 2 ）種子植物區系的表徵科主要有:樟科、茜草科、夾竹桃科、番荔枝科、大戟科、桑科、冬青科、蕓香科、葡萄科、五加科、紫金牛科、蕁麻科、防己科、天南星科、棕櫚科等; （ 3 ）屬的地理成分以泛熱帶分佈為主，其次為舊世界熱帶及東亞分佈; （ 3 ）通過與鄰近地區植物區系的比較，發現內伶仃島與香港植物區系相似性最高，與古田、古兜山的相似性次之，而與南崑山的相似性較低，它們均屬于華夏植物區系界的華南省。
  3. A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours

    研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。
  4. While still not evidenced in our experiment, liquid - phase doping of ammonium molybdate solution has been broadly agreed to be able to significantly increase the yield of swnts. we have developed another doping method, solid - phase doping of metal molybdenum at elevated temperature, and discovered that sol - gel prepared catalyst with such doping can be used to grow multi - wall carbon nanotube bundles in a very large scale

    對催化劑進行摻鉬處理表明，它可顯著提高催化劑催化裂解甲烷合成納米碳管的能力：作者在高溫下進行了催化劑摻入金屬鉬的實驗，得到了一種性能優異的催化劑，以此制備的多壁納米碳管的呈束狀分佈，所得的粗產物與催化劑之間的重量比達15倍以上。
  5. ( 4 ) the fundamental principles of fiber digital holographic interferometry is presented. based on this, the poisson ' s ratio of material, the deformation of a metal plate and the temperature distributing arounding a electric iron are successfully measured

    （ 4 ）運用數字全息干涉術測量了金屬板在外力作用下的形變，觀察了電烙鐵頭周圍溫度場的分佈，同時探討了利用光纖數字全息干涉術測量材料泊松比的可行性。
  6. Through the simulation of the forming process, we can get the deformations, stress, strain, plastic flowing in sheets and the interface state under impact load and rolling load, the deformation of the sawtooth form and comparing to the initial state, the results above are expressed in computer animated way. and the effect of geometrical ( mainly different form, including 90 degree, isoceles triangle ， 75 degree, and 1. 5 high and wide ), material and technical parameters on the bond strength are analyzed, also including the comparison of different sawtooth form. the optimum parameters are got

    對雙金屬復合板成型過程進行模擬，從而得到在沖擊載荷和軋輥壓力作用下基板和覆板的應力、應變分佈和塑性流動變形規律，復合后的齒形的變形情況與初始齒形形成對比，以動畫的方式模擬成型過程，並分析了不同幾何參數（主要是不同的齒型，其中包括直角齒型、等腰齒型、 75度齒型、 1 . 5高寬齒型） 、材料參數、工藝參數對復合強度的影響，以及不同齒型的變形對比以及齒型對復合情況的影響，提出最優齒型、最優工藝參數，有效地指導了實驗。
  7. The precious stone globe is an exquisite art, which is made in proportion to different shape and distribution of every county. through thirfy intricate and elaborate handmade steps, it is made by nearly thirty kinds of natural precious stones. the eastern & western hemisphere equator, meridians and woof are respectively marked on the surface of the globe with gold lines and silver lines, and the names of all countries are signed in chinese of english. with pure cupric frame supporting it, it is such an elegant and valuable art. it represents high class of its owner as well as nobleness of successful people. in addition, it is a splendor gifts to your friends and adds more loyalty and high status to companies as well as families

    本公司生產的寶石地球儀系列，是一項超精工藝藝術品，它是根據世界各國地形及海域分佈按其標準比例，採用近三十種天然寶石，經過近三十套復雜而精細的手工序組砌而成，並採用金屬金銀線標出各國家和地區的名稱，再配以設計精巧的純銅立體架製作而成，一種極富典雅風范，又具收藏價值的高級藝術品，它代表著擁有者之高尚品質，又意味著成功者之尊貴地位，更是高層人士之饋贈寶物，其作為公司及家庭之藝術陳列，更添皇室風采，氣派非凡。
  8. The high metallicity of disk gcs was caused by the particular environment they are situated. because of the strong interaction wjth the disk, the extent of outflow and star formation efficiency ( sfe ) of the disk gcs was quite different from the halo gcs, which leads to the significant difference between the metallicity distribution of two classes of gcs

    本文建立的自增豐演化模型對球狀星團的余屬度雙峰分佈提出了一種新的解釋，指出盤族球狀星團之所以出現較高的金屬度，是因為它處于銀盤這一特殊的環境下，與銀盤相互作用而造成比暈族球狀星團更為強烈的增豐。
  9. Standard test method for particle size distribution of refractory metal powders and related compounds by turbidimetry

    用比濁法測定耐火金屬粉末粒度分佈的標準試驗方法
  10. The paper studied three aspects of extracelluar enzymes in sediments of the tidal flat wetland, namely 1 ) the distibution of five sorts of extracellular enzymes in sediments in the east end of chongming island along the elevation gradient or community succession series, the relationships between the activities of enzymes and the ecological factors, and functions of extracellular enzymes in the process of community succession ; 2 ) the effects of the heavy metal ions and edta on the activity of alkaline phosphatase in sediments of the east end of chongming island by adding and removing of heavy metal ions, discussing whether the activities of extracellular enzymes could be taken as the indicators for the environmental status ; 3 ) the variations of the activities of extracellular enzymes in sediments in the east end of hengsha island after the discarding clay

    本文以長江口典型濕地?崇明東灘為例，首次研究了沿高程梯度或沿植被演替系列沉積物中堿性磷酸酶等五種胞外酶活性的空間分佈規律，分析了胞外酶活性與環境因子的相互關系及其產生機制，討論了胞外酶活性在濕地植被演替中的作用。同時以崇明東灘沉積物為對象，運用重金屬離子的添加和去除等方法，研究了重金屬離子對沉積物中堿性磷酸酶活性的影響，利用胞外酶活性的變化探討了崇明東灘重金屬污染的狀況。此外，本文還研究了橫沙東灘吹泥試驗工程對沉積物環境因子和胞外酶活性的影響並進行了對比分析。
  11. Considering different microstructures and properties of metal of hardened layer and the core of back - up roller, the distributions of shear stress below surface and the contact stress between work roller and back - up roller of a four - high - mill were simulated with nonlinear fem

    摘要考慮軋輥表面淬硬層與其心部金屬材料組織性能的差別，採用非線性有限元方法對四輥軋機的工作輥與支撐輥間接觸應力及輥內剪應力分佈進行模擬，並將模擬結果與傳統強度校核方法進行了對比分析，研究了軋輥淬硬層厚度對輥間接觸應力的影響規律。
  12. In this study we adopt a novel coordination - gel method to prepare zro2 - ni nanocrystalline composite powder. compared to the traditional methods such as coprecipitation, combusting solution synthesis and sol - gel method, coordination - gel method avoids the disadvantages such as bad uniformity of phases " buildup and difficulty of controlling the craftwork

    本文採用一種新的絡合-凝膠法制備zro _ 2 - ni納米復合粉末，與傳統的共沉澱法、溶液燃燒合成法、溶膠-凝膠法相比，絡合-凝膠法克服了其它制備方法中金屬相和陶瓷相分佈不均、工藝難以控制的缺點。
  13. Considering the geometrical figure of tube and tip, we calculated the surface charge density relative distribution curve of metallic carbon nanotube

    摘要考慮碳納米管尺寸及端帽形狀，計算得到了比較精確的金屬型納米管表面電荷密度相對分佈曲線。
  14. Abstract : the crystal structures obtained by static solidification and vibration solidification were compared. it was showed that, in the case of vibration solidification, the orientation growth of the columnar crystal was not obvious, the equiaxial crystal appeared more early. the grains of both types of crystals were quite fine, hardness in the full section was relatively high, and the hardness distribution was uniform. in the former case, the solute segregation in dendritical austenite more severe, and there were lumps of distortion inclusion

    文摘:對球鐵金屬型靜凝固與振動凝固的結晶組織對比表明：後者柱狀晶方向性生長較弱，等軸晶出現較早，且兩者的晶粒均較細，全斷面硬度較高且分佈均勻；前者枝晶奧氏體內溶質偏析大，有畸變夾雜團塊。
  15. At the same condition of pressure, the deformation processes of four different kinds thickness of diaphragm were shown in this paper. comparing with their deforming process, we got the best regular of the thickness distribution

    在相同的加載條件下，給出了4種不同厚度分佈的金屬膜片的變形過程，並對它們進行了分析比較，得出了最佳厚度分佈規律。
  16. 3 the experiment showed that there is no copper deposition in the film using p ( an - mma ) as polymer matrix. but the copper deposition and gradient distributing appears in the film when using p ( an - ita ) and p ( an - mma - as ) as polymer matrix. the size and number of crystal increases as the concentration of ita in copolymer increase and the film is prone to be ruptured

    3實驗顯示p （ an - mma ）作為基體制備的pmgcf五金屬沉積，銅的沉積量為零； p （ an - mma - as ） ， p （ an - ita ）兩種共聚物為基體時均出現金屬銅的沉積，二者金屬沉積相均呈現一定程度的梯度分佈形態，但p （ an - ita ）為基體時得到的晶體比較粗大，且隨其中ita的含量的增多得到粗糙晶體的數目增大，所制的pmgcf脆而硬，受外力沖擊時容易斷裂。
  17. ( 4 ) lt is eh that impact on the vertical distribution of heavy metal over tidal flat. at boundary of redox layer, there is the biggest enrichment of heavy metals. but the characteristic of distribution may be modified by plant activities in the tidal flat

    在高潮灘出現明顯的富集，一般比中、低潮灘高出20 70 ，而中、低潮灘各元素的含量比較接近，不存在明顯的差異，水動力作用是影響沉積物中重金屬元素垂岸分佈的主要因素。
  18. Drawing the following concludes : ( 1 ) for the different metallic small particles with even number or odd number, the heat capacity is varied. the result is different from the bulk metal in essence. at the low temperature, the distribution of the discrete energy levels has important effects on the heat capacity ; at the high temperature, the distribution of the discrete energy levels has little effects because of the involving of mass electrons into the energy distribution

    得到如下結論： （ 1 ）金屬小粒子所含的電子數奇偶性不同，其電子熱容是不同的，這與大塊金屬有本質區別；低溫極限時電子熱容受能級分佈的影響很大；而在高溫時，有大量的電子參與能量配位，比熱遵循大塊金屬的線性規律，能級分佈的影響小時。
  19. Basic properties of various polyethylene polymerized by metallocene catalysts and various branched polyethylene polymerized by oligomerization cocatalysts were researched, and the results show that metallocene branched polyethylene polymerized by oligomerization cocatalysts have high molecular weight, broad molecular weight distribution, and good tensile properties compared to metallocene - based polyethylenes prepared using mono - metallocene and bi - metallocene catalysts

    摘要研究了不同茂金屬催化劑聚合的茂金屬聚乙烯及不同齊聚共聚催化劑聚合的茂金屬支化聚乙烯的基本性能，結果表明：以齊聚共聚催化劑體系的茂金屬支化聚乙烯比以單、雙茂金屬催化劑的茂金屬聚乙烯相對分子質量高、相對分子質量分佈寬，拉伸性能優良。
  20. The tensile stress - strain curves of composites were also simulated. based on the energy equivalence principle, the formula that could predict the modulus of elasticity of sfrmmc was educed by considering the effects of thermal residual stresses and fiber ' s orientation. calculating and analysis indicate that the thermal residual stresses in sfrmmc are spatially non - uniform

    計算和分析表明，金屬基復合材料中熱殘余應力的分佈是空間不均勻的，對復合材料的力學行為產生明顯的影響，與不考慮熱殘余應力相比，其模擬的復合材料應力?應變曲線與實驗曲線吻合得較好。
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