通透性過低 的英文怎麼說
中文拼音 [tōngtòuxìngguòdī]
通透性過低
英文
hypopermeability-
Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0We also investigated the pathological changes of mouse liver, thymus and cerebrum cortex challenged by so2 inhalation by in vivo tests. we studied the apoptotic induction on mouse spleen cells and cytotoxicity of human embryo lung fibroblasts of so2 derivatives by in vitro tests. in vivo tests of sulfur dioxide inhalation showed : ( 1 ) effects on mouse lung of so2 challenge : we found no significant apoptotic changes induced by so2 inhalation but obvious pathological changes of lung with vacuolating of osmiophilic multilamellar bodies which maybe related with the decrease of surfacant and decrease of microvillus of type ii alveolar cells ; we also found thickening of part of basement lamina between type i alveolar cells and capillary endothelium cells which may inhibit the dispersion of oxygen and contribute to lung dysfunction
二氧化硫熏氣染毒的體內實驗結果表明，在本次實驗的濃度范圍內（ 56mg m ~ 3 、 112mg m ~ 3 、 168mg m ~ 3低、中、高三個濃度） ： （ 1 ）通過透射電鏡、 dna凝膠電泳分析和流式細胞分析發現二氧化硫吸入染毒一周對小鼠肺臟沒有明顯的凋亡誘導作用，但通過透射電鏡觀察發現二氧化硫可引起肺臟明顯的超微結構改變，引起型肺泡上皮細胞板層體空泡化，微絨毛減少，線粒體緻密化或腫脹變性；肺泡血管內皮細胞和型肺泡上皮細胞之間基膜增厚，使氧氣彌散功能出現障礙，從而降低肺功能。The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability, kmax / k and k. max / k. min of sand layers of different sedimentous microfacies ; divides interlayer into two types, and counts their numbers, thickness, frequency and density of a single sand layer according to the characteristics of lithology and logging, finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c. the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor, sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves
層內非均質性研究，通過計算不同沉積微相砂體滲透率的變異系數、突進系數以及級差來說明主要儲集微相的非均質特徵；據巖性及電性特徵，將層內夾層分為兩類，統計單砂層段內夾層的個數、累積夾層厚度、夾層頻率及夾層密度，並且根據夾層頻率及密度平面分布圖統計出每層的頻率相對高值區和低值區，總結夾層分佈特徵；根據物性參數隨深度的變化趨勢建立了五種儲層層內物性非均質模式，指出研究區內以a型和c型模式為主。The research important point of this thesis as follows : the first is to generalize the importance of administrative communication and its current insufficient performance, the trend of administrative communication and information distortion caused by e - government. speak up from the certain meaning, the administration activity is a continuous communicative process. only passed the communication, then can the administration activity go on wheel, then can the administration target attain. but information distortion of the administrative communication has constituted huger threat than before to our nation, society, organization. the second, investigating several typical information distortion phenomena in the course of administrative communication, which includes information distortion caused by media coverage, information distortion brought about by intrinsic
本文堅持以辯證唯物主義和歷史唯物主義為指導，採用比較研究、制度研究、邏輯分析等，對行政溝通發展趨勢及信息失真的危害性進行了分析，透視溝通失真的現象來剖析其原因，提出降低行政溝通信息失真的思路，並試圖探索構建適合行政溝通發展趨勢的電子政務溝通模式，構建過程中以行政溝通理論和信息不對稱理論為支撐，結合行政溝通自身的特點和我國行政實際，對防止行政溝通信息失真現象的出現進行的探索性思考，並提出了具有建設性的措施。Erosion damage decreases rock load area, after defining damage variable, the damage stress in rock can be calculated by the method bring forward by lemaitre conveniently. for surrounding rock of a deep buried tunnel under the condition of drained, its seepage character is not only controlled by the high stress in rock, but also influenced by the development of erosion damage. in the whole course of rock " s deformation and failure, its seepage character decreases with the increment of stress in elastic stage, while " increases with the development of failure
巖樣中全應力?應變三軸滲透試驗過程中的典型表現為隨著應力的增加，巖體內的空隙和裂紋受載閉合，滲透性降低，應力達到一定閾西南交通大學鷹士研究生學位論文第11頁值后，巖體內部裂紋發生擴展和歸並，滲透性增強；同樣，地下水的動、靜壓力作用對裂紋的擴展和歸並也起著促進作用。The government has studied the feasibility of introducing other types of lpg vehicles to hong kong in order to reduce vehicle emissions. we briefed the panel on environmental affairs and the panel on transport of the legislative council on the findings of the study on february 6, 2003
政府曾經就可否透過進一步引入石油氣車種以減低車輛的污染物排放量，進行了一項可行性研究，我們已於二三年二月六日向立法會環境事務委員會及交通事務委員會匯報研究結果。The primary study contents as follows : acquire the superhigh strength and excellent duration by adoption of the confecting technique of high performance concrete ; reduce the penetrability of color facing layer and extend the fixed number of serve years of color stamped facing layer to a great extent by the basis of the compound optimum principle of materials and the technique of surface managing and coating ; realize onetime quick construction and tridimensional modeling of facing and foundation by printing principle and mould and by using subtly the flowing - changing characteristic effacing layer
主要研究內容有以下幾個方面：採用高性能混凝土配製技術獲得彩色飾面層的超高強度和優異的耐久性；根據材料復合優化原理，通過表面處理和罩面技術，降低彩色飾面層的滲透性，大幅度延長彩色印模飾面的使用壽命；借鑒印刷原理和模具造型並巧妙地利用飾面層的流變特性，實現飾面與基體的一次性快速施工和立體造型。論文的主要工作及研究成果包括以下幾個方面。Sites and equipments resources in rural primary schools of wansheng district, chongqing, this thesis sets forth current situation and problems of p. e. teaching resources in chinese rural primary schools, including shortage of teachers, p. e. class and unplanned p. e. courses ; serious lack of funds, sites and equipment not meeting the requirement of p. e. teaching ; unsuitable textbooks, insufficient utility of present resources, single teaching contents and students " weak constitution, etc. the major reason caused such problems is that social and school leaders as well as teachers do n ' t pay enough attention to school p. e., and are deficient in scientific guidance as a result of local economy development
本文通過查閱文獻資料以及對重慶市萬盛區農村小學體育場地、器材資源現狀的調研分析，透視出我國農村小學體育教學資源的現狀與問題：師資狀況不良，開課率低、開課隨意性大；經費投入嚴重不足，場地、器材無法滿足教學要求；無合適的教材，現有資源有效利用不足，教學內容單一，學生身體素質差等。導致這些問題的主要原因是：社會、學校領導、教師等對學校體育的認識不足，受地區經濟發展的直接影響，缺乏科學的指導等。The strength of harden material is high, and the properties of this materials and the repairing techniques are advantageous to that of the others. by theoretical exploration on mechanism of permeation, investigate the movement regulation of the material in the object be treated. that make grouting technolgy can be suported by theories : absorb - permeate mechanism of the liquid in the soil proceed to experiment, intermittent grouting method was made according to the result of experiment ; establish the proliferation control theories model of modified epoxy resin in the not even crack system ; to match between material characteristic and craft, to reach the goal of construction in the special and complicated cases, can be directed by the theories
通過對漿材在工程處理對象中的滲透擴散機制的理論試驗探討，探索漿材在處理對象中的運動規律，使化灌工藝技術得到理論支撐：對低滲性粘性土中漿液的吸滲機制進行試驗研究，並據此確定間歇式灌漿的工藝措施；建立改性環氧漿材在非均勻裂隙體系中的擴散控制理論模型，並運用材料特性、工藝的科學配合，達到化灌理論指導特殊復雜條件下施工的目的。The am fungus could obtain adequate carbon resources for itself, thus ensuring normal growth and metabolic activit y owing to the efflux of carbohydrate from the plasma membrane of the host root cortical cells to the interface of the symbiosis. thirdly, the structure and composition of the root cortex cellular plasma membrane kept good integrity and the leakage of carbohydrate maintained at low level when the plant obtained enough p and metabolizes normally. although enough carbohydrate was synthesized by plant, the am fungi could not obtain enough energy, resulting in inhibition of growth of the extraradical hyphae and decreased metabolic activity of the am fungi
由此，我們認為植物磷營養狀況調控菌根真菌生長和代謝活性的機制是：當植物處于嚴重缺磷脅迫時，不能合成足夠的碳水化合物供給自身生長的需要，也不能向真菌提供額外的碳水化合物，因而菌根真菌生長受阻，代謝活性較低；當植物中度缺磷時，根皮層細胞質膜的組成和結構不完整，通透性大，碳水化合物通過質膜向外的滲漏量大，菌根真菌因而獲得充足的碳源，保證真菌正常的生長和旺盛的代謝；當植物獲得足夠的磷而使體內磷營養代謝正常時，其細胞質膜組成和結構完整，碳水化合物的滲漏量保持在較低的水平，盡管此時植物合成了足夠的碳水化合物，但菌根真菌仍不能獲得足夠的能量，導致真菌生長受阻和代謝活性降低。Aiming at some reservoir characteristics of low porosity, extra - low permeability, low oil saturation, and low productivity as well as shallow depth in changxi area of ansai oilfield, through a large number of laboratory experiments and field tests, some suitable fracturing technology and operation parameters have been optimized, including low temperature fracturing fluids., propping fracture radius 、 pre - liquid and sand - fluid ratio
摘要針對安塞油田長西區低孔隙度、特低滲透率、低含油飽和度和淺層低產的油藏特性，通過大量室內、現場試驗研究，優選出適合的壓裂施工參數，包括低溫壓裂液、裂縫支撐半徑、前置液和砂液比。First, according to the demand of vimp for resin system, the reaction kinetics and rheological of up resin are investigated and the optimal content of low additive profile ( lpa ) is determined. then vimp based on a high - permeable medium and grooves are studied by visual experiments, through which the appropriate high - permeable mediums are selected and the parameters of width, depth and spacing for flow grooves and spacing for supply grooves are optimized. furthermore, various factors affecting the mold filling process are discussed and the whole vacuum infusion procedures are described taking examples of the manufacture of a model boat and a sandwich panel in one infusion
文中首先根據vimp對樹脂體系的要求，對vimp用不飽和聚酯樹脂體系的動力學和流變學性能進行了研究，確定了最佳低收縮添加劑的含量；對高滲透介質型和溝槽型vimp開展了實驗研究，通過可視化實驗優選出較好的高滲透介質，確定了引流槽的寬度、深度和槽間距及主槽的槽間距等工藝參數並進行了優化；對影響充模過程的各種因素進行了詳細的討論，並以模型船和夾芯面板的製作為實例描述了兩種vimp的成型過程；在實驗的基礎上，建立了二維滲漏模型，採用控制體有限元法對高滲透介質型vimp進行了成型過程的計算機模擬計算，通過充模時間和流動前峰的計算值與實驗結果的比較，驗證本文所採用的數學模型和數值方法的正確性，其結果對實際生產具有一定的理論指導意義。In this dissertation, mgo5 is introduced to form solid solution to restrain the decomposition of at in high temperature. then at is mixed with the al2o3, forming gradient composite to raise the integral intensity of the material and not affecting the thermal properties. the experimental results show that the additive mgo5 can effectively restrain the decomposition of at and promote the sinter process, which enhances the density of at
本文在充分分析本領域國內外研究現狀的基礎上，首先通過引入添加劑鈦酸鎂（ m2t ） ，使其與鈦酸鋁形成固溶體，以達到抑制鈦酸鋁中溫分解的目的；再通過與強度高、氣密性好的氧化鋁進行梯度復合來提高整體材料的強度並能彌補鈦酸鋁滲透性能差，同時對材料的低熱膨脹性能影響不大。This special membrane is a porous hydrophobic membrane, which means that water vapor can pass through it, but drops of water cannot. by passing hot seawater through one side of the membrane, only the water vapor generated from the seawater passes through, the water vapor is then cooled by the cool water on the other side of the membrane, forming water drops, resulting in freshwater
在膜蒸餾過程中，被加熱的鹹水產生水蒸汽，水蒸汽透過膜，膜的特點是允許蒸汽透過而液態水卻不能通過，透過的水蒸汽遇到溫度較低的表面后冷凝，冷凝的水滴由於膜的特殊性不能透過膜而返回，將其進行收集便得到淡水。The high - performance heat - reflective coated glass is also called sunlight control coated glass it is made by coating a number of metal or metal compaound films onto the high - quality float glass or other base glass with the vacuum magnetic control sputtering method, which can effectively control the reflection, transmission and absorption of solar energy, that is to say, this glass allows sufficient natural light to come in for daylighting, and can also reflect major part of sunlight irradiation to reduce the collection of indoor heat and lower down the expenses for ventilation and air conditioning ; furthermore, the transmission, reflection ratio and reflection color are ready for the selection by the users
高性能熱所射鍍膜玻璃也稱為陽光控制鍍膜玻璃，是在優質浮法玻璃或其他基片上用真空磁控濺射的方法鍍多層金屬或金屬化合物薄膜而成，可有效控制玻璃對太陽能的反射、透過和吸收，也就是說允許足夠的自然光進入室內用於採光，還能把大部分太陽光輻射熱反射掉，減少室內熱量的積聚，降低通風及空調的費用，而且可以根據客戶的需求，靈活選擇透過率，反射率及反射顏色。This paper takes yushulin oil field, which is a super - low permeable lithologic reservoir in the peripheral part of daqing oil field, as an example and uses the geologic profiling of oil - bearing sand body to propose a set of random simulation pattern optimized arrangement which is suitable for narrow channel sand body
以大慶外圍特低滲透巖性油藏? ?榆樹林油田為例，通過對含油砂體的地質解剖，提出了一套適合窄條帶河道砂體的隨機模擬井網優化部署方法。This measurement system takes the advantages of dsp ' s high performance in data processing, cmos image sensor ' s high performance with low cost and the designing flexibility of cpld. it converts measurements of lens ' s parameters into digital image processing and calculation of data got from the image by modeling to the optical system
該系統充分利用了數字信號處理器的強大的數據處理功能和數字cmos圖像傳感器的高性能、低成本的優勢，以及可編程邏輯器件的設計靈活性，通過對光學系統建立數學模型，將對透鏡的光學參數的測量轉化為對數字圖像進行增強、變換等處理並從中提取相關信息進行計算。It is known that astrocytes take a key role in the response to hypoosmotic stimulation : astrocytes can perceive the change of osmotic pressure and release taurine which then activates glycine receptors on the neurons, and inhibits the release of vp from the neurons in son
現已發現星形膠質細胞在對低滲刺激的反應中起關鍵性的作用：星形膠質細胞感受滲透壓的變化，通過大量釋放牛磺酸（ taurine ） ，作用於神經元上的甘氨酸（ glycine ）受體，從而抑制神經元釋放血管加壓素（ vasopressin ， vp ） 。With the implementation of cpf, fine - grain and automatic privilege control can be transparently exercised to traditional applications, threats of malicious intrusion to a system can be reduced greatly, and support to the principle of least privilege can therefore be achieved effectively
通過cpf的實現，系統能進行細粒度的、自動的特權控制，且對應用軟體完全透明，惡意入侵的危害性被大大降低，系統能有效地支持最小特權原則。分享友人