number abstract 中文意思是什麼
number abstract
解釋
編號清單-
Abstract : with the selected chlorella, several performance assessments of algaecide has been discussed, including chlorophyl a content detection, number micro - metering, algal cell juice opacity testing and algal inhibiting ring method
文摘:選用小球藻作為實驗藻種，對幾種評價滅藻劑性能的方法進行了探討，其中包括葉綠素法、抑藻圈法、藻細胞濁度法和顯微計數法。 -
Abstract : the paper directed against the history and present of china silk industry, by analysing the principal contradiction of restricting industrial advance from the point of view in productive forces and production relations, and by comparing to the brasil silk inductry where its productive forces is quickly advanced, thus, author suggested that we must again construct the advantage of china silk industry, by transtforming a industrial mode, and by building a modern production and technique system in mulberry field, and by building a industry - like technique system for enterprise raise silk worm, and by firstly advancing a number new silkworm region in the cental and west district et cetea aspects
文摘:本文針對中國蠶絲產業的歷史和現狀，從生產力和生產關系的角度分析了制約產業發展的基本矛盾，並通過和近期蠶絲生產力發展較快的巴西進行比較，提出應從產業模式改造、建立現代化桑園生產技術體系和工業化養蠶技術體系、發展一批以中西部地區為主的新蠶區等方面，重新營造中國蠶絲產業的優勢。 -
Abstract : this paper probes into the problems that whether or not the measure of composite price index is the composite variation degree of the price, whether or not the averages ' price index is the average number of individual indexes statistically, and whether or not the indicial testing theory possesses the theoretical significance
文摘:就綜合價格指數測度是否是價格綜合變動程度，平均數價格指數是否是統計意義上的個體指數的平均數及指數檢驗理論是否具有理論上的意義方面的問題進行了探討研究。 -
Abstract : the main characters and seed set of bc1 ， bc2 ， bc1f2 from ms line back - crossing with the pollen of hybrid rice were studied. the appearance of a large number of self fertile plants in ms line was analyzed. the effect of introgression of restoring genes on ms line purity and hybrid yield in indica and japonica rice was discussed. it was pointed out that “ iso - cytoplasm restorer line ” was seriously reducing the purity of ms line and that hybrid rice was unsuitable for isolation zone in the seed production fields
文摘:研究了雜交稻花粉對母本不育系回交後代群體bc1 、 bc2 、 bc1f2的主要農藝性狀和育性表現，分析了不育系中出現大量自交結實株的原因，討論了恢復基因滲入對秈、粳不育系純度和雜交稻產量的影響，指出「同質恢」對降低不育系純度的嚴重性和雜交稻作制種田隔離區的不合理性。 -
Abstract : according to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
文摘:利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。 -
Abstract : the maximum tube distribution numbers in tube sheet limited circle for fixed tube sheet heatexchanger have been determinded by used of the superposition method with computer based on c language programming. it is characterized by determination the maximum tube distribution number according to the even number or singular number of center tube distribution. the method is simply and quickly, and can be used for the design and process calculation of heatexchangers
文摘:採用迭加的方法，使用c語言編程在微機上實現管板布管限定圓最大布管數的確定.該方法可根據中心布管數是奇排列還是偶排列來確定最大布管數，簡便易行，計算速度快，對換熱器的設計及工藝計算具有實用價值 -
Abstract : this paper provides the functional equation of general rooted maps with the number of inner faces, the rooted face valency and the number of non - rooted vertices as parameters on the torus, and gives an explicit expression of the enumerating function of these maps with the number of inner faces and of non - rooted vertices, then the number of these maps with the size as a parameter whose asymptotic result had been obtained in [ 2 ] is obtained as a corollary
文摘:這篇文章給出了環面上以內面個數，根面次和非根節點個數為參數的一般有根地圖的計數方程，導出了以內面個數和非根節點個數為參數的這類地圖的計數方程的精確解.作為推論，推出了以邊數為參數的這類地圖的個數，其近似解在文獻[ 2 ]中已討論 -
Abstract : an easy method for determining the lateral fold number of 3 - d seismic swath is presented. it is described in details that the non - vertical time error and selection method of vertical line direction. based on existing conditions of 3 - d seismic data acquisition in coal field, an assumption of 3 - d broad azimuth data acquisition is provided to remove the disadvantages of non - uniform azimuth distributions from old observation system
文摘:提出了線束型三維觀測系統橫向覆蓋次數的一種簡易確定方法，詳細論述了非縱誤差的實質及縱測線方向的選擇方法，根據目前煤田三維數據採集現狀，提出了寬方位角的設想，以便克服以往三維觀測系統中方位角分佈不均的弊端。 -
Abstract : according to the theory of difference analysis, this paper proposed using mixed - f statistic to determine the optimal class number of fuzzy cluster, and using fuzzy partition entropy to verify whether the class number is optimal, the optimal class number can be determined by the two statistics mentioned above correctly
文摘:根據方差分析理論，提出應用混合f統計量來確定最佳分類數，並應用模糊劃分熵來驗證最佳分類數的正確性，綜合運用上述兩個指標可以準確確定最佳聚類數。 -
Abstract : the ever increasing number and power of polluting loads ( non - linear, time - variant loads and so on ) connected to the electric power network cause a significant distortion in the line voltage and line current
文摘:電力系統電網中逐漸增多的「污染性」負荷（如非線性負荷、時變負荷等）正在使電網中的電流、電壓出現越來越多的、顯著的畸變。 -
Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
Though she knew the small number of his talents she appreciated his abstract value as a male.
盡管知道他才疏學淺，她卻依然珍重他作為男性的抽象價值。 -
Abstract : on the basis of the general chromatography rate model, the effects of bi number, number, mass transfer pel number, particle diameter, injection and ratio of solute diameter and pore diameter on the chromatographic peak of taxol and the separation of taxol and cephalmonnine were simulated with computer. the essential factors affect on the chromatographic process of taxol and cephalmonnine were obtained and a more useful theory was provided to direct the chromatography separation of taxol and cephalmonnine
文摘:根據建立的液相色譜普遍化速率模型，模擬了比渥數、數、傳質彼克列數、粒徑、進樣量和溶質分子直徑同多孔粒子孔徑比對紫杉醇色譜峰峰形和紫杉醇和三尖杉磷堿色譜分離度的影響，獲得了控制紫杉醇和三尖杉磷堿色譜過程的主要影響因素，從而為紫杉醇和三尖杉磷堿的色譜分離提供了更好的理論指導。 -
Abstract : the effects of sodium hydroxide concentration and chlorination temperature on effective chlorine content of calcium hypochlorite were tested. the effects of mesh number of standard sieve on effective chlorine content of calcium hypochlorite were tested. the retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched, and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested. the results indicate that when sodium hydroxide concentration is 333. 3 g / l, and chlorination temperature is 20, the effective chlorine content of calcium hypochlorite is highest, that when mesh number of standard sieve is 180 mesh, the effective chlorine content of calcium hypochlorite is higher, but the passing sieve rate is not too low, that the cycle number has no remarkable effect on the effective chlorine content of calcium hypochlorite, and the effective chlorine content of calcium hypochlorite is basically above 80 %
文摘:測試了燒堿質量分數和氯化溫度對漂粉精有效氯含量的影響，測試了分鹽用標準篩目數對漂粉精有效氯含量和過篩率的影響.研究了漂粉精母液中有效氯的回用工藝流程，並測試了循環次數對漂粉精有效氯含量的影響.結果表明，燒堿質量分數為25 、氯化溫度為20時，漂粉精的有效氯含量最高；標準篩目數為180目時，漂粉精的有效氯含量較高而過篩率不太低；循環次數對漂粉精有效氯含量沒有顯著影響，並且漂粉精有效氯含量基本上可以達到80以上 -
Abstract : the fragile raw silk finished with softer or not and the normal raw silk are warped on the same beam and weaved. the number of end breaking and the tension of warp of different raw silk during weaving, as well as the tensile properties and dyeing behavior of fabric are compared and analysized. the results show : if the fragile raw silk is finished with softer, the number of end breaking during weaving will be obviously decreased, and the strength of fabric will be increased slightly, but the color deviation will be existed compared with the fabric made from normal raw silk
文摘:將正常生絲、脆弱生絲、經柔軟劑處理的脆弱生絲一起作為經絲上機織造，比較它們織造過程中斷頭、張力情況，並對織物的拉伸性能、染色性能作對比分析，結果表明：脆弱生絲經柔軟處理后斷頭次數明顯減少，織物強力有所增加，但與正常生絲一起染色存在色差。 -
For certain synesthetes, perhaps it is the abstract concept of numerical sequence that drives the color, rather than the visual appearance of the number
對某些聯覺者而言，或許顏色感是由數字順序的抽象概念所引發，而不是數字本身視覺上的外形。 -
Abstract : some problems related to “ variation of chromosome number ” in some teaching materials of genetics are presented in this article. these problems are involved in some conceptions such as haploid, chromosome set and aneuploid that are defined unclearly and confusedly in these books
摘要指出了高校有關遺傳學教材「染色體數目變異」一節中，部分概念如單倍體、染色體組、非整倍體等存在的概念表述不清、前後矛盾等問題，並提出了相應的修改意見。 -
Abstract : this paper briefly presents th e application of advanced brazing techniques for a larye number of assemblies of space vehicles, such as thrust chamber and turbine rotor of launch rock et engine, titanium tube of satellite, attitude control engine injector and wave guide component of satell ite, reflector, tube and honeycomb panel of manned spacecraft, main engine nozzl e and preburner of space shuttle as well as the pipeline systems of space statio n
文摘:簡略地介紹了先進釬焊技術在航天器部件，例如運載火箭發動機的推力室和渦輪轉子、人造衛星的鈦導管、姿控發動機噴注器和波導器件、載人飛船的反射器、導管和蜂窩壁板、航天飛機的主發動機噴管和預燃室以及空間站的管路系統等的廣泛應用情況。 -
Abstract : heat exchanger network for one oil refinery has been improved by process energy integration technology. energy savings of new scheme is 57 % against original design and number of units decrease by 2
文摘:用過程能量組合方法對某煉油廠的換熱網路進行改造，新方案比原系統節能57 % ，並減少了兩臺換熱器 -
Abstract : by comparing the channel capacities hetwem orthogonal space - time block coding and multi - antenna array system over rayleigh fading channel, some capacity loss for orthogonal space - time block coding is obtained, which is a function of the code rate, the rank of channel matrix and the number of transmitter and receive antennas, although the system of orthogonal space - time block codes is simple and easy to implemented. if is also shown that there is no capacity loss only if both the code rate and the channel matrix rank are all one
文摘:在研究瑞利衰落條件下正交空時分組編碼通道容量的基礎上，將其與多發送多接收天線系統的通道容量進行了比較.比較結果表明，正交空時分組碼雖編碼簡單，易於實現，但在通道容量方面存在較大的損失，損失的程度與編碼碼率、通道矩陣的秩及收發天線數等因素有關.進一步研究表明只有當編碼碼率和通道矩陣的秩都為1時，才沒有通道容量的損失
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