粉粒學 的英文怎麼說

中文拼音 [fěnlìxué]
粉粒學 英文
micromeritics
  • 粉 : Ⅰ名詞1 （粉末） powder 2 （用澱粉製成的粉條或粉絲） noodles or vermicelli made from bean potato o...
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  1. Based on the principle of mechano - chemistry, the strong shock and crashing mechanical force produced by ls - 250 pulverizer can act to the surface of superfine carbon and white carbon particles during the process. the result of the experiment indicated that distortion and amorphism change occur to the surface crystal lattice of carbon particles, and the phenomena are prick up as the action time of mechano - chemical force

    依據機械化學原理利用ls一250型流能粉碎機高速旋轉的動齒工作過程中產生的強烈沖擊、碰撞機械力，使其作用於超細石墨及白碳黑顆粒表面，檢測表明，石墨粒子表面晶格發生畸變及無定形化，且隨著機械力作用時間的延長而加劇。
  2. Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l. cv hetao flesh, which was cloned into plasmid vector pmd - 18 - t. the clon of antisense orientation were selected, and it was inserted downstream of camv35s promoter and enhancer " " of tmv into the plant expression vector pbinyxw, antisence expression vector pbinya was constructed. at the base that pollination and fertilization of cucumis melo l. cv hetao was studied, using pollen tube pathway transformate cucumis melo l. cv hetao, 76 fruit had been obtained, moreover, hardness and content of sugar were analysed

    本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然後將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子「 」的下游，構建成反義表達載體pbinya 。並在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，並進行了硬度和含糖量的分析。
  3. The structures and characteristics of several graphite samples are measured by means of powder x - ray diffraction ( xrd ), brunauer - emmer - teller ( bet ) surface area measurement, inductively coupled plasma ( icp ) spectroscopy, particle size analysis and electrochemical measurements. the effects of origin, structure, impurity, particle size, specific surface area of carbon materials on the electrochemical characteristics are studied. a synthetic graphite with abundant resources, low cost and favorable performance is determined as the raw material for modification of graphite

    採用xrd 、 bet 、 icp 、激光粒徑分析及電化學性能測試等方法，對國內外多種典型石墨樣品的結構與性能進行比較，研究石墨材料的來源、晶體結構、雜質含量、顆粒大小、比表面積等因素對其充放電性能的影響，確定一種性能較好、價格低廉、來源廣泛的普通人造石墨粉作為熱處理與摻雜改性、以及復合結構炭材料研究的原材料。
  4. Morphology of generative cells in pollen grains of 10 plants of sect. camellia and sect

    摘要用光學顯微鏡對茶組、油茶組和紅山茶組植物共10份材料的花粉粒生殖細胞進行了形態觀察。
  5. The length of generative cell nuclei is 3. 5 - 20. 0pm. study method on morphology of generative cells in pollen grains and the evolutionistic tendency of genus camellia base on the morphological character and size of generative cell nuclei was also discussed in this paper

    筆者探討了光學顯微鏡下觀察山茶屬花粉粒生殖細胞形態的方法，並根據山茶屬植物花粉粒生殖細胞核的形狀及大小變化，對其演化的趨勢進行了討論。
  6. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    本研究以武裝直升飛機防護裝甲材料為研究對象，採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料，結合其力學性能、掃描電鏡和界面微區能譜分析結果，分析了sic _ p al復合材料的真空燒結過程中的界面現象，以及材料增強和斷裂機理，並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態（應變率為3 . 3 10 ~ （ - 3 ） s ~ （ - 1 ） 5 . 2 10 ~ 3s ~ （ - 1 ） ）的壓縮破壞響應進行了研究，分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下，材料的變形和微觀損傷機理，以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。
  7. The flames of fear erupted again a year later when cornell university entomologist john losey and his colleagues reported that they had fed milkweed leaves dusted with bt corn pollen to monarch butterfly larvae in the lab and that those larvae too had died. that was the straw that broke the camel ' s back says david pimentel also an entomologist at cornell

    一年之後，美國康乃爾大學的昆蟲學者洛西等人提出報告，他們以沾有bt玉米花粉粒的馬利筋葉餵食大樺斑蝶幼蟲，結果那些幼蟲都死了。疑懼之火再度燃起。 「這是壓垮駱駝的那根稻草。 」
  8. Chemical reaction activity of tapioca starch with non - crystallized granule state

    非晶顆粒態木薯澱粉化學反應活性研究
  9. At the surface of the pollen grains there are three types of aperturates, including three porates type, three colpates type and three porate - colpates type ; and four types of sculpture, namely, reticulate, striate, striate - reticulate and verrucate. the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization, and the experimental methods are proved stable. the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other. oieanolic acid, l, 5, 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc, and the different chromatogram of various plants can be considered as characters of identification. the contents of oleanolic acid in 12 species of plants are determinated by hplc, but among the different plants and botanical organs their contents are different, and the highest content in flowers

    本文對川鄂產獐牙菜屬藥用植物資源進行了野外調查、標本採集和鑒定，對12種乾燥藥材的性狀進行了描述，提供了可以鑒別的特徵。通過掃描電子顯微鏡觀察的12種本屬藥用植物的花粉粒均為單粒花粉，萌發孔有3孔型， 3溝型和3孔溝型三種類型；表面紋飾包括網狀紋，條狀?網狀紋，條狀紋和瘤狀紋四種類型。用hpias ? 1000高清晰度彩色病理圖文分析系統對葉片上表皮細胞作圖像分析，並進行方法學研究，結果表明，同種植物莖上第3節葉片中段主脈和第1側脈之間葉上表皮細胞垂周壁彎曲程度sfc值和細胞縱、橫向直徑的比值slf值，種間有顯著差異，每種都有相對恆定范圍值。
  10. Bulk - chemicals pneumatic delivery tanker

    氣卸散裝化學粉粒車
  11. It is discovered that the combustion condition of the second stage pc is up to the outlet temperature of the first stage pc and the content of combustible gases in first stage flue also plays positive effect on the ignition of second stage pc. the effects of parameters of two coal - air mixture, wall temperature of first ignition chamber and annular filling air on imfit are studied experimentally in this thesis. in this thesis, the numerical simulations of ignition and combustion of pc in imfit are conducted

    本文通過建立數學模型，對感應加熱煤粉多級無油點火進行數值模擬，研究了一級煤粉煤粉在點火室內的著火過程和二級點燃過程、煤粉粒徑分佈對煤粉多級無油點火的影響，研究了一級點火室壁面溫度、一級煤粉氣流和二級煤粉氣流的風粉參數在煤粉多級無油點火過程中的影響規律；根據二級點燃段的流場和溫度場分佈，研究了環形夾心風推遲二級煤粉著火的機理。
  12. Particle size analysis. determination of particle size of powders. optical microscope method

    粒度分析.粉粒大小的測定.光學顯微鏡法
  13. The conclusions are as follows : ( 1 ) high - pressure water - atomization can be used to produce a pre - alloyed steel powder with high apparent density, high green strength, size - stability after sintering and low hydrogen - loss content ; ( 2 ) the higher smelting temperature and / or water pressure, the finer particle size of steel powders ; ( 3 ) when the atomization angle holds in a reasonable value ' s range the obtained powder will have a better particle size distribution ; ( 4 ) an optimum atomization technological parameters : liquid steel flux, water pressure and water prick angle was obtained ( 5 ) reduction variables ( temperature, holding time, material - bed ' s thickness and reducing gas flux ) have a significant effect on the particle agglomeration and properties of final powder was given ( 6 ) different alloying methods were developed to modify properties of ferrous powder materials and hence to broaden its applications in ferrous powder metallurgy industry

    本文系統研究了水霧化預合金鋼粉生產工藝及合金化方法對鐵基粉末冶金材料性能影響，詳細研究了冶煉、霧化、還原工藝參數對預合金鋼粉化學成份和物理性能影響，並得出如下結論： （ 1 ）採用高壓水霧化技術可用於生產高密度、高強度、尺寸穩定性的低氫損含量的水霧化預合金鋼粉。 （ 2 ）冶煉溫度越高，高壓水壓力越大，所得生粉顆粒粒度越細。 （ 3 ）水錐角調整在一個適當角度范圍內可獲得粒度組成較好的生粉。
  14. Abstract : the pollen morphology of 5 species of corydalis from northeast china was observed and compared by sem. the results declared the shape and size of the pollen and exine sculpture of the 5 species were basically stable and could serve as a taxonomic character

    文摘:用掃描電鏡對東北延胡索極其近緣植物的花粉形態進行了觀察，結果發現花粉粒在形狀、大小、外壁紋飾、溝的長短及寬度等方面均有區別，從中獲得了東北延胡索及其近緣植物分類方面的孢粉學依據.因此花粉的特徵可用於區別延胡索類植物
  15. The kinetics of the reaction of cao powder with so2 was studied in a differential packed - bed reactor

    摘要本研究以?微分?充床反應器探討氧化鈣粉粒與二氧化硫反應的動力學。
  16. The contrast experiment of chemistry reducing process and hydrothermal treatment were studied. the results showed that the crystallinity of copper powders prepared by hydrothermal method clearly increased, and the grain size distribution became narrow comparing with the copper powder prepared by reducing process

    通過化學還原法與水熱法制備銅粉的初步對比試驗，證明水熱處理過的銅粉粒度分佈變窄，結晶度提高，從而具備了還原法所不能比擬的優良性能。
  17. Abstract : the resource distribution of aralia elata in northeast china were investigated. by means of the optical microscope, the features of histology and powder of cortex of this plant were first examined. in the cortex, threre are a large number of secretory ducts and a small quantity of druses of calcium oxalate

    文摘:對分佈在我國東北地區的藥用植物遼東?木的資源進行了調查，以光學顯微鏡對其根皮的組織和粉末進行了觀察，其根的皮層較層，並含有大量的樹脂道，粉末具有大量的澱粉粒及少量草酸鈣結晶
  18. The influnence of coupling agent, binders, curing process, formation process and the size of ndfeb powder on ndfeb bonded magnet has been systematically studied by a lot of experiments. the bonded magnet from rapid quenched ndfeb has been produced, and the influence of the technique factors such as coupling agent, coupling process, powder particle size, binder, solidification process, formation process on its properties has been analysised by means of sem, dgn - 3 magnetic properties analysis, compressive strength measurement, etc

    本文通過大量的試驗，對各向同性ndfeb粘結磁體用偶聯劑、粘結劑、固化劑，以及固化工藝、成型工藝及其粒度對磁體性能的影響進行了多方面詳細的研究。在不同工藝條件下制備粘結磁體的基礎上，利用磁性能測試儀、力學性能測試設備和掃描電子顯微鏡等測試分析手段，研究了粘結方法制備ndfeb磁性材料的制備工藝，探討了偶聯劑、磁粉粒度、粘結劑、固化劑、固化工藝和模壓工藝等對ndfeb磁體磁性能及力學性能的影響。
  19. For sites of drilling, shaping, grinding, particle conveyance, mixing, stirring, incineration, chemical, cement, lime, wood shaving, painting

    用於鉆孔、成型、研磨、粉粒體輸送、混合、攪拌、焚化爐、化學、水泥、石灰、木屑、塗
  20. Polymer - network gel process was used to synthesize nanometer oxide such as zro2 ( 3. 5mol % cao ), co3o4 and nio. dta / tg, xrd and tem were used to characterize the gel and products, and determine the lowest temperature and time for calcining the gel. the effect of the concentration of starting solution, temperature and time for calcining the gel on the size of the products were also discussed

    本文採用高分子網路凝膠法進行納米zro _ 2 （ 3 . 5mol cao ） 、 co _ 3o _ 4 、 nio等納米氧化物超細粉的軟化學合成，利用dta tg 、 xrd和tem等分析手段對凝膠和產物超細粉進行表徵，確定凝膠的最低煅燒溫度和煅燒時間，並探討起始無機鹽溶液濃度、凝膠的煅燒溫度和煅燒時間對產物超細粉粒徑的影響。
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