物質的量濃度 的英文怎麼說
中文拼音 [wùzhídeliángnóngdù]
物質的量濃度
英文
amount-of-substance concentration of b- 物 : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
- 質 : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
- 的 : 4次方是 The fourth power of 2 is direction
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 濃 : 形容詞1. (液體或氣體中所含的某種成分多; 稠密) dense; thick; concentrated 2. (程度深) (of degree or extent) great; strong
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 物質 : matter; substance; material
- 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
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Methods for measurement of air pollution. determination of the mass concentration of sulphur dioxide in ambient air : tetrachloromercurate pararosaniline method
空氣污染度的測量方法.第10部分:在環境空氣中二氧化硫質量濃度的測定:四氯汞化物副品紅法And the adsorbability of this novel adso rbent for ldl was determined. in order to prepare the solid supports in accordance with with the request of adsorbent for ldl, paam beads were synthesized by inverse suspension polymerization. the composition of the polymerization system is shown as follows : the concentration of monomer and dispersant are 12 % and 0. 65 % respectively, the volume ratio of oil / water isl : 3, the mole ratio of aam and mba is 18 : 1
本文用反相懸浮聚合法合成符合ldl吸附劑載體要求的聚丙烯酰胺微珠,經實驗篩選出反應體系所需的最佳單體濃度( 12 ) 、最佳分散劑用量( 0 . 65 ) 、最佳油水比值( 1 : 3 ) 、最佳單體( aam )與交聯劑( mba )的物質的量之比( 18 : 1 ) 。As the concentration of pes solution increases, the pure water flux decreases and the clearance rates of low - molecular weight substances such as urea and creatintine first increase, then decrease, and increase slightly at last
隨著鑄膜液濃度的上升,水通量呈現總體下降的趨勢;膜對低分子物質的去除率先上升,然後下降,隨后又略有上升。But the dry matter production decreased markedly with increasing ca concentration. especially p. vittata l. grew much badly under the condition treated with 5. 0 mmol / l ca. the effects of as and ca concentration in culture solution on as content in p. vittata l. were much significant
然而,介質中高濃度的鈣表現出明顯的抑制蜈蚣草生長作用,特別在5 . 0mmol lca處理下,生物量極顯著減少,而低鈣( 0 . 03mmol lca )水平處理有利於蜈蚣草的生長,生物量較大。Besides, scan rate and cycle period also affect the result ; co - deposition of dualistic oxide is a focus of research, as an element in the same group, ir is selected. deposition rate of composition is decreased by the adding of ir composition, and when the proportion of ir exceeded 50 %, composition procession can be ceased. but cooperation of ir and ru oxide can highly increase the specific capacitance of active material ; annealing treatment under a certain temperature can help to change the hydrate ru composition into mixture state ru oxide, accordingly increase the stabilization of active material
研究表明:電解液的配製過程中,氯化釕濃度、溶液ph值、陳化時間、溶液溫度對電鍍效果均有影響,其中溶液ph值是最主要的影響因素;在儀器的使用條件探索中,理論結合實驗確定了本電鍍液體系循環伏安電勢窗的理想范圍,並發現循環伏安掃描速度和掃描周期對電鍍結果也有較大影響;混合氧化物的共沉澱是目前研究熱點,在此選用與釕同一族的銥作為共沉澱元素,銥的加入會阻礙氧化物的沉積速度,銥的比例超過50 %會使沉積作用停止,但是二元氧化物的協同作用使沉積的活性物質比容量大大提高;一定溫度下退火后處理作用會使水合釕化物轉變成混合價態的氧化釕,從而提高活性物質的穩定性。Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming
模擬的主要內容是在各種過程耦合作用下,以下描述構造成礦體系的主要變量的時空演化:與成礦流體的形成和性質有關的變量,如地層中礦物(包括成礦物質)的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等;與構造變形和流體運移有關的各變量,如應力與變形速率、巖石孔隙度、構造(斷裂)滲透率等;與沉澱成礦有關的變量,如礦物(金屬礦物和脈石礦物)的成核速率、各礦物的沉澱量等;上述各有關變量間的時空耦合關系,如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds
利用所取資料,系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵;綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用;用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明,沙塵暴有其高發期( 4 、 5月)和高發時段( 14 - 20時) , 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下,湍流動量通量和湍流感熱通量都是重要的湍流交換,沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。In this paper, the three - dimensional barotropic hydrodynamic model ( hamsom ) and the suspended particle transport model ( spm ) are used to simulate the variations in winter and summer suspended material concentrations in the bohai sea, yellow sea and east china sea
摘要採用hamsom三維正壓水動力模型結合粒子追蹤的懸浮顆粒物輸運模型模擬了渤、黃、東海懸浮物質量濃度冬、夏季變化。Stationary source emissions - manual determination of mass concentration of particulate matter
固定源排放.顆粒物質量濃度的人工測定Stationary source emissions - determination of the mass concentration of nitrogen oxides - naphthylethylenediamine photometric method
固定源輻射.氮氧化合物質量濃度的測定.萘二胺光度測定法Amount - of - substance concentration of b
物質的量濃度Microporous materials have caught more and more attention because of its large specific surface area, high adsorption capability and chemical modification of the surface
摘要微孔材料因其具有大比表面積、對低濃度痕量物質的高效吸附及表面化學可修飾性而越來越受到煙草科技工作者的青睞。1 ) the number of sandstorm days from 12 weather stations in the helanshan zone is documented, indicating that the events can happen on the east and west sides of the ranges all the year round, with high frequencies in april to may, averaging 3. 2 and 3. 1 days on the west side, respectively and with the eastern high frequency in april, averaging 2. 0 days. also, analysis reveals that the high frequency period for eastern station yanchi and western guaizihu is april, with 5. 4 and 5. 2 days, on average, respectively
銀川、巴音浩特和通古淖爾三地背景大氣沙塵氣溶膠粒子的數濃度譜和質量濃度譜均呈單峰型,服從對數正態分佈,與城市污染物氣溶膠的三峰、雙峰質量譜明顯不同。浮塵、揚沙、沙塵暴天氣條件下,平均數濃度和質量濃度是依次增加的,可相差4 - 7倍。沙塵氣溶膠粒子譜分佈還與地理位置有關。These are main problems of eutrophication. at first we select algae which grow under different level of nutrition ( or different development phase in the process of eutrophication ), domesticate, selecte seed, and culture algae at the lab, and then we obtain dependence of each algae on nutrition and understand information of eco - breadth of nutrition of supplied alga through pure culture under different concentration of nutrition. we find out resource utilization, competition between interspecies and confirm the quantity - effec t relationship between succession of species and nutrition through mixed culture
本文首先選取在不同營養環境下(或富營養化過程的不同發展階段)生長的藻類物種,在實驗室內進行馴化、選種與純化培養;然後通過不同營養水平的純藻培養實驗,獲取不同藻種生長過程對營養物質的依賴行為,從而可以了解每一供試藻種的營養物生態幅信息;再通過對應培養濃度的混合培養試驗,以期揭示生物種群間的資源利用與競爭行為,並可進一步確定生物種群的演替與環境營養物之間的量效關系。It is considered that pretreatment could improve the physical and chemical of ofmsw characteristics, such as solubility, acidity, alkalinity, and biodegradability, and accordingly increase soluble chemical demand ( cod ) and volatile fatty acid ( vfa ), enhancing biogas yield, reducing hydraulic retention time ( hrt ), optimizing anaerobic process and releasing post - treatment
研究認為,通過溶胞處理能夠改善有機垃圾的物理化學性質如發酵物料的溶解度、酸堿度等,提高微生物對難降解有機物的分解,增加可溶性cod和揮發性酸的濃度,優化發酵細菌的代謝途徑以及產物的組成等,從而增加生物氣產量,縮短水力停留時間,強化厭氧發酵過程,減輕了后續處理的負擔。Qiandaohu lake was very famous for its clean water quality. but in recent years the water body has become seriously eutrophic especially during summer months in some areas of the lake and came to the attention of national, provincial and city environment protection agency. the main objective of this study involved the following : sampling and monitoring water from the lake ; water quality assessment and biological assessment ; ascertain the limiting factors for phytoplankton growth ; fuzzy cluster analyse of water pollution of all sampling points ; predicting total phosphorus concentration in the lake by using static models ; setting up regression models and their application ; setting up an eco - dynamic model and its simulation
本研究根據1998 - 2000年連續監測數據,對千島湖進行了水質評價和生物評價;分析了千島湖水體富營養化的限制性因子;同時根據千島湖各個取樣點的污染狀況,對千島湖進行水環境質量區劃;利用前人的經驗統計模型預測了千島湖現有的磷濃度水平及治理所需要削減的污染物負荷量;並且組建了多個回歸統計模型,運用這些模型預測千島湖水體中的總磷濃度;最後根據多年水質、底質、生物等方面的監測數據以及千島湖流域的氣象和社會經濟狀況的資料組建機理性的千島湖富營養化模擬模型。At suitable range of nutrition, hydrodictyon reticulatum can obtain dominance of resource competition at initial stages, because it has more capability in absortion and utilization of resource than that of microalga, which reduces the resource utilization of microalga and restrains overgrowth of microalga in a degree
在適宜的營養鹽濃度范圍內,由於供試的水網藻對營養物質的吸收利用能力大於微藻對營養物質的吸收利用能力:因此,水網藻能在富營養化的初期階段的資源競爭中占據優勢,並盡可能減少微藻對資源的利用量,這可在一定程度上抑制微藻的過度生長。The effects of catalysts, solvents, reaction time and temperature on the liquefaction were investigated. the molecular weight distributions of liquefaction products were determined by gpc. in most cases, low residue content cannot be achieved by single catalyst
實驗結果表明,纖維類廢棄物在濃硫酸苯酚(濃硫酸占所加物質總量的質量分數為6 )的混合催化體系中,當溫度為160 ,時間為70min時的液化效果最好。Results of bacteriostasis activities of acetic ester extract under different concentrations showed that the higher concentration, the stronger bacteriostasis effect was, and that the sequence of bacteriostasis activities was different under different concentrations
用不同質量濃度的乙酸乙酯提取物進行抑菌活性試驗,結果顯示:質量濃度越高,其抑菌能力越強,而且,在不同質量濃度下,對測試的6個細菌的抑制活性的大小順序不一致。These values were compared with the n and p concentration in sediments and macrophyte biomass in order to assess nutrient availability, fate and storage capacity
這些數值被用來與沉澱物和大型動植物中的氮磷濃度相比較,由此得出營養物質的有效性,去向和儲存量。分享友人