生長梯度 的英文怎麼說

中文拼音 [shēngzhǎngtīdù]
生長梯度 英文
growth gradient
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 生長 : grow; grow up; ascent; merisis; build up; auxesis; increment; overgrowth; gain; burgeon; bourgeon...
  1. The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew

    運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。
  2. Here is the result, during yvo4 odd - crystal growing under cz method, while fusibility contain nature - convection by temp - grads and impose - convection by crystal - circumvolve, which make it difficult to growth large dimension odd - crystal

    數值模擬的結果表明，在cz法生長yvo _ 4單晶過程中，由於熔體中存在著因溫度梯度引起的自然對流和晶體旋轉引起的強迫對流，使生長大尺寸單晶有著一定的困難。
  3. On the basis of foreign documents, the dissertation firstly describes the morphology, taxonomy, and biological characters of cochineal insects. then, by using artificial climate cases in the lab, according to orthogonal design, 8 lands of combinations of temperature, humidity and light is set, while the temperature has four levels : 15, 20, 25 and 30, and the relative humidity has two levels : 60 % and 80 %, while the light also has two levels : 980 lux and 60 lux. through observations and analysis of hatching percentage, survival percentage of the first instar and during from the second instar to the adult, the population tendency index, generation life cycle, size and eggs of female adult, the development of the cochineal under different conditions is studied

    在收集、整理國外對胭脂蟲的研究資料基礎上，首先從胭脂蟲的形態學、分類學、生物學特性入手，進而在實驗室內利用人工氣候箱，應用正交設計方法，設計了4種溫度、 2種濕度、 2種光照梯度的不同組合，通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標，深入研究胭脂蟲在這些組合下的生長發育狀況，應用數理統計方法，分析出溫度、濕度和光照對各項生物學指標的影響，找出胭脂蟲適宜的室內培育條件，並為野外胭脂蟲的培育提供一定的理論依據。
  4. The hybrid algorithm raises the convergence rate of the conjugate gradient method and solves the problem for which the convergence rate of the steepest descent method get slower when the isopleth of goal function is oblong

    這種混合優化演算法結合了共扼梯度法和最速下降法產生搜索方向，既提高了共扼梯度演算法的收斂速度，又解決了目標函數的等值線是扁長橢球時，最速下降法下降緩慢的問題，具有收斂速度快、收斂范圍大、適應面廣等特點。
  5. The author finded out that the rice in the mediums with phosphorus and phosphate rocks can grow well, the quantity of the algea and the phosphorus in the mediums increase. on the contrary, in other mediums the rice appear to be short of phosphate

    其中，全磷培養基和含磷礦石粉的無磷培養基中雜交水稻正常生長，沙角衣藻生物量較實驗前有所增長；由於實驗梯隊磷礦石的轉化作用，使培養基有效磷濃度均較實驗前也有所增長；而其他實驗組水稻均出現不同程度的缺磷表徵。
  6. Ecological attributes of carex pseudocuraica over different water depth in the sanjiang plain

    不同水分梯度下三江平原濕地漂筏苔草無性系株高生長特性
  7. Here we report that growth cones of rat cerebellar axons in culture turned away from a gradient of sdf - 1, a chemokine that attracts migrating leukocytes and cerebellar granule cells via a g protein - coupled receptor ( gpcr )

    以前的證據表明， sdf - 1 ，一種經典的chemokine ，能夠吸引白細胞和遷移中的神經元，這種作用是通過g蛋白耦聯受體介導的。利用生長錐轉向分析，我們發現sdf - 1的濃度梯度能夠吸引或排斥培養的小腦顆粒細胞的生長錐。
  8. In this paper, kandelia candel ( l. ) druce hypocotyls were cultivated in sand and treated with 15 % seawater for 60 days under laboratory conditions. the influence of increasing concentrations of napthalene and pyrene ( 0, 0. 1, 1 and 10mg / l ) on hypocotyl germination and growth, photosynthesis metabolism, water metabolism and membrane protection system were observed to inquire into the ecophysiological responses of mangrove k. candel to pahs phytotoxicity. moreover, the concentration and distribution of parent polycyclic aromatic hydrocarbons ( pah ' s ) in surface sediment, underground root and leaf residue of mangroves in jiulong river estuary ( fugong, north and south shores of haimen island, baijiao ), neighbouring xiamen western harbour ( dong islet ) and dongzui harbour ( fenglin ) were examined

    在實驗室條件下，分別以0 . 1 、 1和10mg l的萘（ nap ）和芘（ pyr ） 3個梯度濃度組級砂基培養秋茄（ kandeliacandel （ l . ） druce ）幼苗，培養基鹽度15 ，培養期60d ，以不加pahs為對照，分析了nap和pyr對紅樹植物秋茄幼苗的生長、光合代謝、水分代謝以及膜保護系統的影響，探討pahs對紅樹植物秋茄的的生理生態效應及植物性毒害（ phytotoxicity ）的機理。
  9. Similarly, xenopus spinal growth cones turned away from a gradient of baclofen, an agonist of the gabab receptor

    同樣的， gabab受體的激動劑baclofen的濃度梯度也能夠吸引或排斥爪蟾脊髓神經元的生長錐。
  10. It have been proved that the tip [ ca2 + ] i and the amount of tip f - actin oscillates periodically accompany the oscillatory growth of pollen tubes

    伴隨花粉管的振蕩生長，花粉管頂端的ca ~ （ 2 + ）濃度梯度和微絲的聚合?解聚狀態會發生周期性變化。
  11. Both species grew poorly in the culture medium absent of salt, especially to a. corniculatum. moderate salt stress ( from 5 to 20 ) can stimulate the growth of both species, and the optimum salinity for growth was from 10 to 15. when the substrate salinity was higher than 30, stem height, root length, dry mass increment, net photosynthetic rate fell remarkably for both species

    溫室內人工鹽度梯度栽培下，木欖幼苗地上、地下部分形態和生物量的增長均表現為低鹽促進和高鹽抑制，以10 15鹽度下最適合木欖幼苗的生長；鹽度從10增加到50時，木欖幼苗的凈光合速率、氣孔導度和蒸騰速率均隨之下降。
  12. Length, diameter, density, fresh weight, dry weight, water content, osmotic potential and element concentrations ( ca, mg, na, k, cl ) were determined for each. seedling of b. gymnorrhiza and a. corniculatum were cultured for 60 days on various salinity of seawater ( 0, 5, 10, 15, 20, 30, 40, 50 ) in green house. samples were taken at 3, 7, 11, 15, 22, 30, 45 and 60 days after planting, separated into root, hypocotyl, stem and leaf

    本文研究了福建九龍江口木欖和桐花樹胎生繁殖體從果實形成到發育成熟過程中形態、生物量、含水量、胚軸密度、滲透勢、五種主要礦質元素（ ca 、 mg 、 na 、 k 、 cl ）等的變化和溫室內人工鹽度梯度栽培下木欖和桐花樹成熟繁殖體長成幼苗（ 0 60d ）過程中形態、生物量、含水量、滲透勢、光合蒸騰特性、五種主要礦質元素（ ca 、 mg 、 na 、 k 、 cl ）等的變化；並且在野外自然條件下，跟蹤調查不同灘塗位置下秋茄成熟繁殖體定居成活、自然死亡狀況以及測定幼苗生長過程中（ 1年）形態、生物量、含水量、光合蒸騰特性等的變化。
  13. Analyse the research of distributing of microbe community and the tendency of the change, disscuss the principle and traits of denaturing gradient gel electrophoresisand terminal restriction fragment length polymorphism, to research the law of change that the microbe community have in composting process, we can get effective and rapid information to filtrate the microorganism during composting process, then accelerate the development of compost technology

    摘要對堆肥微生物種群分佈及其動態變化的研究進行了分析，論述了分子生物技術中的變性梯度凝膠電泳和末端標記限制性片段長度多態性的原理和特點，以及用於研究堆肥微生物的群落結構演變規律，為分析和篩選堆肥中的微生物提供更加有效、快速的信息，促進堆肥技術的發展。
  14. 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。
  15. Crumbs of nails were isolated from onychomycosis suffers, koh was chosen to be solvent, nail fungi were examined by microscopy, cultured in sabourud, purified by method of concentration grads and method of exsecting cusp of mycelia. finally, sixteen purified strains were ready

    從甲病患者病甲中分離出甲碎屑，選用koh為浮載劑，直接鏡檢，採用沙堡氏培養基對它們進行分離培養，濃度梯度法和切取菌絲尖端生長法對菌種進行純化，得到純化后的菌株16株。
  16. And grindintg experiment based on uniform design is conducted. depending on data process system, the regression model of production efficiency, output per degree and particle are established. through single factor analysis on all experimental indexes, the law that the bottom corner, height, bottom length of trapezium and spacing influence the hammer mill capbility are achieved

    並採用均勻設計方法安排異型粉碎室粉碎試驗。利用數據處理系統，建立生產率、度電產量、粒度的回歸方程。對各試驗指標進行了單因素分析，研究梯形篩片的底角、高度、間距和下底長對粉碎性能的影響規律。
  17. Resveratrol ( res ) and piceid ( pd ) in grape berries were determined by using high performance liquid chromatography ( hplc ), combining with the c18 solid extraction

    摘要利用高效液相色譜（ hplc ）梯度洗脫方法，結合c18固相萃取技術，檢測了葡萄果實生長發育過程中順反式白藜蘆醇及其糖苷的動態變化。
  18. Selective absorption of electromagnetic wave. adw employing gases which do n ' t absorb the laser energy can form a gas urtain " whose pressure of the two sides is equal to the low pressure of laser cavity and the ambient circumstance pressure respectively so it can isolate the higher pressure ambient air from entrancing into the laser cavity and maintain the hel ' s running normally

    氣動窗口利用對激光器輸出波長沒有任何吸收作用的特殊氣體作為窗口工作介質，並根據氣體動力學部分相關原理，能生成一個具有與激光腔低壓和環境大氣高壓相匹配的壓力梯度、並把激光器低壓工作介質和外界大氣相隔離的「氣幕」 ，從而保證高能激光器的正常工作。
  19. In crystal growth experiment, aggas2 crystal was growen in special quartz ampoule by crucible descending method ( b - s method ). the equipments were used, which consist of a two - zone vertical growth furnace whose temperature gradient is tunable, a descending device with decelerating rate of 1 : 2000, a controlling system of electy and a temperature testing system using thermal couples

    晶體生長實驗中，我們利用上下溫度梯度可調的二溫區管式生長爐， 1 2000減速比的旋轉下降系統，電氣控制系統和密集適時測溫系統等，在特殊形狀的石英生長安瓿中，採用坩堝下降法（ b - s法） ，以合成的aggas _ 2多晶原料進行晶體生長。
  20. In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained

    本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合，使演算法十分困難.本文討論了無生化過程時的幾種求解方法，數值結果表明：用三次迎風插值法對常見的對流項占優勢，且場變量有較大梯度的問題較適用.在討論有生化反應過程時，利用對流項與生化反應項的特徵時間量級估算，給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比，吻合很好
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