primary carbon 中文意思是什麼
primary carbon
解釋
伯碳原子-
Autotrophic organisms ( autotrophs ) are important ecologically as primary producers, their activities ultimately supplying the carbon requirements of all heterotrophic organisms
自養生物體在生態學上是重要的初級生產者，它們的活動最終為所有的異氧生物體提供能量。 -
The primary and carbon copy
主收件人和抄送（ -
The author analyzes the change rules of fuel consumption and the mass of the main exhaust emission pollutants ( nox, pm, co, hc and carbon ) with the operating parameters ( speed and load ), points out that nox and pm are the primary exhaust emission pollutants which affect the turbocharge - intercooled diesel engine to reach the requires of emission regulations, and map the figure of compositive exhaust emission characteristic
分析了有效燃油消耗率及各主要排放污染物（ nox 、 pm 、 co 、 hc 、碳煙）的排放量隨運轉參數（轉速n與平均有效壓力p _ （ me ） ）的變化規律。指出nox與pm是影響增壓中冷柴油機排放達標的主要排放污染物，並繪制了排放綜合特性圖。這為該類型柴油機的性能分析提供了參考。 -
Primary study on carbon cycling in warm temperate deciduous broad - leaved forest
暖溫帶落葉闊葉林碳循環的初步估算 -
In present experiments, the lowest density of cmf organic aerogel is 0. 062 g / cm3, the density of the corresponding carbon aerogel is 0. 090 g / cm3. meanwhile, the synthetic mechanism of cmf aerogel was deduced firstly based on the primary experimental demonstation.
目前實驗條件下合成的c _ mf有機氣凝膠最低密度為0 . 062g cm ~ 3 ，相應炭氣凝膠密度為0 . 090g cm ~ 3 ，所得氣凝膠具有規則的網路結構。 -
Influential factors of primary dendritic arm spacing in high - carbon steel billets
高碳鋼小方坯的一次枝晶臂間距的影響因素 -
The change is subtle but troubling because carbon dioxide and methane constitute the primary greenhouse gases in the atmosphere, returning heat to the earth instead of allowing it to escape into space
這項改變雖不易察覺，卻會造成問題，因二氧化碳與甲烷構成大氣中主要的溫室氣體，熱會被保留在地球而難以散逸到太空中。 -
Filament winding machine is the key device which uses continuous fibre reinforced plastics to wind produce, its primary function is through which continuous fibre ( such as glass, aramid, carbon fibres and wire ) or fabric is wound on the mandrel surface on which produce is shaped according to needed pattern laws by special mechanical moves and controls
纖維纏繞機是用連續纖維增強塑料來纏繞製品的關鍵設備，其首要功能是通過特定的機械運動和控制，將浸漬過樹脂膠液的連續纖維帶（如玻璃纖維、碳纖維、芳綸纖維、金屬絲等）或布帶，按照所要求的線型規律排布在制品成型的芯模表面上。 -
Carbon dioxide emissions are the primary source of greenhouse gases
二氧化碳的釋放是溫室效應氣體的主要來源。 -
The primary source of excess atmospheric carbon dioxide is fuel burned for transportation and the making of electricity. cutting down the world s forests adds to the problem, as the harvested trees can no longer take carbon dioxide from the air. bbc s world edition also discussed the rising acidity of the world s oceans
由於交通運輸和發電而燃燒煤礦和石油所產生的廢氣，是造成大氣中二氧化碳過多的最主要因素，而濫砍森林亦使得問題更趨嚴重，因為這些被砍伐的樹木再也無法吸收消化空氣中的二氧化碳。 -
The influence of substrate materials on properies of primary diamond like carbon films prepared by direct photo chemical vapor deposition method
襯底材料對直接光化學汽相淀積類金剛石碳膜成膜初期的影響 -
The fitness of four negative electrode materials such as al, fe, zn, cd, and of six membranes materials : microfiber glass mat separator, polyethylene, polypropylene, polyvinyl chloride, vinylon, soapnated cellulose acetate, and of four current collects : carbon fiber ; nickel foam ; nickel foam sthongthened by iron wire net, punched silver grid in the super - iron alkaline batteries was comparatively studied. the influence of two storaged method ( with and without electrolyte ) and two impurities ( zno, fe ( oh ) 3 ) to the experiment cell ' s self - discharge nature was also comparatively studied. at last, the nature of discharge. structure and electrochemistry of experimental cell with k2feo4 as cathode active material prepared by three different methods : high temperature reaction, hypochlorite oxidizing and electrolysis, was comparative ly studied. we can conclude : i ) the open - circuit potential and the flat of work potential and the percent of capacity of k2feo4 till 1. 0v during the discharge at constant load of experimental cells decreased by the order of al / k2feo4, zn / k2feo4, cd / k2feo4, fe / k2feo4. as for the nature of charge - discharge cycle, cd / k2feo4 fe / k2feo4 zn / k2feo4. in water solute electrolyte, although al / k2feo4 can n ' t be used as storage battery, it have great potential as primary cell or storage cell from the aspect of its discharge capacity. discharge power
採用組裝實驗電池、 x -射線衍射（ xrd ）和循環伏安（ cv ）的方法，從實驗電池的放電特性、充放電循環特性、自放電特性，不同高鐵酸鹽的結構特性和電化學特性幾個方面，對4種金屬負極材料（ al 、 fe 、 zn 、 cd ） 、 6種隔膜材料（復合玻璃纖維、幅射接枝聚乙烯、改性聚丙烯、聚氯乙烯、維尼綸無紡布、皂化再生纖維素） 、 4種集流體材料（泡沫鎳、以鐵網為加強層的泡沫鎳、切拉銀網、炭纖維編織網）在堿性高鐵電池中的適用性進行了比較研究；對2種雜質組分（ zno 、 fe （ oh ） _ 3 ）和2類不同貯存方式（干、濕）對實驗電池自放電特性的影響進行了比較研究；對3種方法（高溫固相反應、次氯酸鹽氧化、直流電解）所制k _ 2feo _ 4的實驗電池的放電特性、結構特性和電化學性能進行了比較研究。 -
Based on the discussion above, a primary comparative experiment of concrete columns externally wrapped with hfrp, carbon fiber reinforced polymer ( cfrp ) and high - strength glass fiber reinforced polymer ( sgfrp ) was carried out to study the ductility, load carrying capacity, strengthening cost of strengthened columns and the exerting efficiency of cf. test results showed that the hfrp can fully exploit the advantages and overcome shortages of the materials
在此基礎上，以加固柱的延性、承載力、加固價格和cf性能發揮效率為指標，設計並進行了hfrp 、碳纖維復合材料（ cfrp ）和高強玻璃纖維復合材料（ sgfrp ）加固柱的探索性對比實驗研究，結果表明hfrp充分發揮了兩種纖維各自的性能優勢，克服了單一frp的缺點。 -
One of our primary goals in these organic - synthesis experiments ? and one of life ' s fundamental chemical reactions ? is carbon fixation, the process of producing molecules with an increasing number of carbon atoms in their chemical structure
做這些有機合成實驗的主要目的是固碳，就是在分子中塞入愈來愈多碳原子，而這正是生命的基本化學反應之一。 -
Aimed at solving the problem that high content of unburned carbon is unfavourable for the comprehensive ultilization in scale of fly ash, the fundamental principle that separation of unburned carbon from fly ash is theoretically analyzed by wet flotation and dry electro - separation, three factors and two levels orthogonal test for flotation and two factors and three levels test for electro - separation were conducted, furthermore, the primary factors and law affecting separating efficiency in flotation and electro - separation were obtained. the results show that wet flotation can give 7. 34 % of the cleaned coal yield rate, which contains 44. 53 % of ash content and 56. 02 % of separating efficiency, while dry electro - separation can reduce the content of carbon in separated fly ash to 3. 16 % and remove 53. 12 % of carbon from fly ash
針未燃炭含量過高不利對粉煤灰大規模綜合利用的問題，從理論上分析了粉煤灰濕法浮選和干法電選分選未燃炭的基本原理，進行了三因素二水平正交浮選試驗和二因素三水平的正交電選試驗研究，得到了影響浮選和電選分選效果的主要因素及其規律.試驗表明:採用濕法浮選法可獲得精煤產率為7 . 34 % ，灰分為44 . 53 % ，分選效率為56 . 02 %的分選效果；採用干法電選，選后粉煤灰的含碳量可降到3 . 16 % ，脫碳率達53 . 12 % -
Abstract : aimed at solving the problem that high content of unburned carbon is unfavourable for the comprehensive ultilization in scale of fly ash, the fundamental principle that separation of unburned carbon from fly ash is theoretically analyzed by wet flotation and dry electro - separation, three factors and two levels orthogonal test for flotation and two factors and three levels test for electro - separation were conducted, furthermore, the primary factors and law affecting separating efficiency in flotation and electro - separation were obtained. the results show that wet flotation can give 7. 34 % of the cleaned coal yield rate, which contains 44. 53 % of ash content and 56. 02 % of separating efficiency, while dry electro - separation can reduce the content of carbon in separated fly ash to 3. 16 % and remove 53. 12 % of carbon from fly ash
文摘:針未燃炭含量過高不利對粉煤灰大規模綜合利用的問題，從理論上分析了粉煤灰濕法浮選和干法電選分選未燃炭的基本原理，進行了三因素二水平正交浮選試驗和二因素三水平的正交電選試驗研究，得到了影響浮選和電選分選效果的主要因素及其規律.試驗表明:採用濕法浮選法可獲得精煤產率為7 . 34 % ，灰分為44 . 53 % ，分選效率為56 . 02 %的分選效果；採用干法電選，選后粉煤灰的含碳量可降到3 . 16 % ，脫碳率達53 . 12 % -
In one side, the study may make the simulating model of climatology and land - biosphere more perfect, in the other side, the study will help to discover the real action of vegetation in the global carbon circle, which gives the more scientific method to estimate accurately biomass and net primary production ( npp ) of ecosystem and how much carbon in atmosphere absorbed by vegetation, to predict the possible impact of global climate change on terrestrial ecosystems, and to make scientific strategies for the global change
一方面可以為進一步建立更完善的模擬氣候與陸地生物圈之間關系的數值模式奠定基礎，另一方面可為探索植被在全球碳循環中的具體作用，正確地評估和預測全球氣候變化對生態環境的可能影響，制定相應的政策提供科學依據。本文以寒溫帶落葉針葉林區為重點來進行試驗模擬，研究植被對氣候強迫響應的有效途徑。 -
Secondly, two carbon fiber reinforced composite beams were fabricated, and their modal frequencies were measured by an experiment method. thirdly, delaminations were modeled by pairs of nodes with the same coordinates but different node numbers, while the modal frequencies of these beams with different delamination location and size were computed by an eas piezoelectric solid element. moreover, a novel method combining computational mechanics and neural network was demonstrated for composite health monitoring ; the first five flexure modal frequencies obtained by fem were modified by a primary revising approach and were used to train the neural network
本文較全面地評述了神經網路的應用模型、改進演算法等，編制了bp神經網路程序：制備了纖維增強復合材料試件，並進行實驗模態分析；利用坐標相同、節點號不同的方法模擬脫層損傷，基於eas列式的壓電固體單元計算了不同脫層損傷情況下的頻率信息；針對基於實驗數據訓練神經網路存在樣本不足的缺陷，本文提出了利用有限元方法對含有脫層損傷的復合材料試件進行數值模擬，以前五階彎曲模態頻率構建訓練樣本的新思路，並提出了一種初步的計算值修正方法，以此構建神經網路的訓練樣本：將實驗模態分析的結果送入訓練好的神經網路進行預測，實現了對復合材料梁的脫層損傷的定位和損傷程度的評估。 -
Firstly, this dissertation estimated the size of carbon source ; sink and net carbon sink of farmland ecosystems in china costal regions ( including ten provinces ) with statistic data from 1981 to 2001, which include data of crop yield and agricultural consumptions. then analyzed the temporal - spatial differences of carbon source, sink and net carbon sink of china costal farmland ecosystems. secondly, estimated npp ( net primary productivity ) of farmland ecosystems in china costal regions with per month noaa - avhrr ndvi ( normalized difference vegetation index ) data and estimation model
本文首先運用1981 - 2001年的統計資料（作物產量和各種途徑的農業投入數據） ，對沿海十省區農田生態系統碳源匯及凈碳匯進行了估算，並分析了其時空差異；然後運用1998年逐月ndvi數據通過建模對沿海地區農田生態系統npp進行了估算，並分析了npp分佈與農田生態系統碳吸收的相關性；最後通過對農田生態系統碳源匯的影響因素分析，提出了不同的農田生態系統碳增匯減排技術。 -
Primary carbon atom
伯碳原子
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