grain distribution 中文意思是什麼

grain distribution 解釋
粒度分佈
  • grain : n 1 穀物,糧食〈英國叫 corn〉; 谷類植物。2 穀粒,籽粒。3 (沙、金、鹽等的)粒,顆粒,晶粒。4 些微...
  • distribution : n 1 分配,分發,配給;分配裝置[系統];配給品;配給量;【經濟學】配給方法,配給過程;分紅;【法律...
  1. Beryllium powders with the same particle size and various contents of beo were prepared by pre - sintering - acid washing processes initiatively and the influence of beo alone on o mys of beryllium was observed and some new results have been obtained - compared with the content of beo, the distribution of beo in beryllium has more critical influence on mys ; finely dispersed beo along the grain boundaries and in the matrix results in the dispersion strengthening of beryllium matrix and thereby the higher mys value ; on the contrary, the coarser beo particles clustering on the grain boundaries results in negative influence on o mys

    開創性地用預燒結? ?酸洗工藝制備了相同粒度、不同beo含量的鈹粉,從而開展了beo含量單獨對鈹材_ ( mys )影響的研究,得出一些新的結果:與beo含量相比, beo在鈹中的分佈狀態對_ ( mys )的影響更大。沿晶界、晶內彌散分佈的較細小beo對基體鈹有彌散強化作用,使_ ( mys )即較高;如果beo較粗大地成簇狀聚集在晶界,反而對_ ( mys )有不良的影響。
  2. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定,而格局分佈有可能受樣方大小的影響,且分析過程中沒有涉及聚塊間密度差的問題,因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法,測定不同生境的格氏栲種群空間格局,分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義,紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋理從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此,格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
  3. Study on order distribution of monolayer brazing grindingplate s grind grain

    單層釬焊砂盤磨粒分佈有序性研究
  4. Our country grain physical distribution garden area operation research

    我國糧食物流園區運作研究
  5. Some demonstration and extension work based on existing scientific results have been done such as developing grain in large area of land using comprehensive cultivation measures in zibo city in 1987 and research on response of highly yielding crops to potassium and proper distribution of potash fertilizers in double cropping systems supported by ppic in 1990

    已根據現有科技成果作出一些示範推廣工作,如1987年在淄博市用綜合栽培措施在大面積土地上開發糧食生產,以及1990年在ppic資助下研究一年兩作制下高產作物對鉀的反應和鉀肥合理分配。
  6. Based on in - situ investigation and laboratory experiments, the article analyzed in detail the factors which affect the transportation and strength characteristics of gangue cemented tailing grain fillings such as powder coal, water - reducer, mortar density and grain size distribution

    摘要以現場調查和室內實驗為基礎,從粉煤灰、減水劑、漿體濃度、粒級級配等方面,對煤矸石作為膠結充填骨料的管道輸送特性和強度特性進行了詳細的分析。
  7. Stress distribution near grain boundary in anisotropic bicrystals and tricrystals

    各向異性雙晶和三晶體晶界附近應力場分析
  8. In order to obtain the strontium titanate nanocrystalline powers materials with small grain, high purity and homo - geneous grain size distribution, the effect of water, waiter - free acetic acid, gel temperature, heat treat temperature and so on were researched

    為了制備出晶粒小、材料純度高以及粒徑分佈均勻的納米鈦酸鍶粉體材料,研究了用水量、冰醋酸加入量、凝膠溫度和煅燒溫度等工藝參數對制備納米鈦酸鍶粉體材料的影響。
  9. Abstract : the current technical condition and grain production and distribution as well as the characteristic of circulation of area grain storage in yunnan province has been analyzed, at the same time, the technical measurement for improving the level of grain storage and transport has been discussed. however, the main line of grain circulation taking bulk storage and bulk transport as the primary form will be set up, and the modern grain storage equipment will be fitted in newly build and improved large - scale granary, simultaneously, the supervisory and examination mechanism of province and area will be strengthened

    文摘:分析了雲南省區糧食儲藏技術現狀及糧食產銷和流通特點,論述了提高糧食儲運水平的技術措施,即建立以散儲散運為主要形式的糧食流通主幹線;在新建和改造的大型糧庫配備先進的儲糧設施;健全省區內的糧食監督檢驗機制等。
  10. Grain distribution system

    糧食流通體制
  11. A simple discussion on the reform of grain distribution system

    淺議糧食流通體制改革
  12. Reform of the grain distribution system

    糧食流通體制改革
  13. Promoting the reform of grain distribution system with scientific developing outlook

    用科學發展觀推進糧食流通體制改革
  14. Grain distribution technology

    糧食流通技術
  15. A preliminary discussion on optimizing the transport plan for china ' s grand grain distribution

    改進我國糧食大流通運輸方案初探
  16. The hot austenite grain distribution and the phase composition at normal temperature were obtained with the aid of metallographic analysis method after the rolled workpieces were divided at the specified position on the linear cutting machine

    對軋后工件進行指定位置線切割取樣,並用金相分析法得到變形后工件的高溫奧氏體晶粒尺寸分佈及低溫相組成。
  17. The results of the malvern laser analytical apparatus and sem also show that by adding a kind of surfactant into the reacting vessel, a evenly grain distribution precursor particl e that has a average grain size about 0. 5um can be obtained

    在反應中加入表面活性劑,用malvern激光粒度檢測儀和掃描電鏡觀察粉體的粒度及分佈狀態,可看出平均粒度在0 . 5 m左右的前驅體粉末分佈均勻,分散良好。
  18. A consideration in the building of modern grain distribution

    構建現代糧食流的思考
  19. A discussion on promoting the grain distribution supervision system

    略談糧食流通監管機制的完善
  20. Relations between farmers and local officials have improved following the phasing out of the centuries - old agricultural tax and the building of a market system for grain distribution

    幾個世紀以來當地政府和農民的主要沖突主要來自農業稅和糧食市場機構,這段時間已經得到很好的改善。
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