水中密度 的英文怎麼說
中文拼音 [shuǐzhōngmìdù]
水中密度
英文
immersed density-
Hot water is likewise less dense than cold water and rises, causing convection currents which transport energy
熱水是同樣密度較低，比冷水上升，造成對流電流，其中運輸能源。We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center
我們分別以苯、二苯乙烯、噻吩為中心，氨基、二苯氨基和二乙氨基為電子給體，硝基為電子受體組合形成的分子為研究對象，在從頭計算的水平上用密度泛函理論計算了這些分子在低激發態下的單、雙光子吸收強度，重點研究了分子的長度、中心和給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明，分子長度與單光子吸收強度之間有密切關系，而在雙光子吸收中這種關系較弱；中心在雙光子吸收中具有重要的作用；在中心和受體一定的情況下，增加給體的供電子能力，可提高雙光子吸收強度。In many lakes in summer that is a warm low - density layer ( epilimnion ) lying above a colder denser layer ( the hypolimnion ), the zone of rapid temperature change between the two layers being celled the thermocline
夏季，多數湖中溫暖的低密度水層（湖面溫水層）在寒冷的較高密度水層（湖底凈水層）之上，中間夾有溫度改變較快的水層（變溫層） 。High density low temperature liquids settle to the bottom and remain in the tank for longer periods of time, thereby negating the advantages of equalization.
密度高，溫度低的廢水沉在底部並在池中停留較長時間，這樣就失去了均衡的效益。With the establishment of the regional headquarter for asia pacific in shanghai in 2003, geberit underlined its commitment to china. esteemed as a pioneer in sanitary and piping systems, geberit is mastering all kind of in - building water flows. the broad product family ranges consist of flushing tanks and mechanisms, electronic sensors, traps, shower toilets, water drainage and water supply systems
吉博力公司於1996進入中國，於1996年和1997年在浙江岱山和上海建立了兩個生產基地，主要生產節水型水箱隱蔽式水箱水箱配件及各種管道系統，並銷售所有吉博力集團的其它產品，如電子感應水嘴，電子感應小便沖水系統，高密度聚乙烯管道排水系統hdpe ，以及虹吸式屋面雨水排放系統等。Measurement of air moisture. hydrometric parameters
空氣中水含量的測量.液體密度測定參數We have found that densities of insectivorous songbirds can be higher along salmon streams than along waterways that do not support spawning salmon, suggesting that the bird communities respond to the abundance of insects produced by the harvest of salmon carcasses
我們發現有鮭魚的溪流中，食蟲鳴鳥的密度比無法供鮭魚產卵的水道還高，可見鳥類社會對鮭魚殘骸能產生大量昆蟲是有回應的。A study on bonding mechanism of water - based modified starch adhesive used in the packaging of middle density fiberboard of kenaf stalk
水性改性澱粉膠在包裝用麻稈中密度纖維板中膠合機理的研究Aiming at some occurrent interfering problems during acoustic variable density logging in oil region, for example, some short horizontal linear interference has appeared in the acoustic variable density logging drawing, and combining with the logging principles of cement bond composed logging tools, this paper has analyzed the factors of forming interferences during acoustic variable density logging and the influences for well cementing evaluation, and suggested some methods to judge and solve every interference
摘要針對油區聲波變密度測井中出現的干擾問題，例如在聲波變密度測井成果圖上有短橫線干擾，結合水泥膠結組合儀測井原理，分析了聲波變密度測井中形成干擾的因素及其對固井評價的影響，提出對各種干擾的判斷和解決方法。The study conducted research on the following four fields : firstly, the characteristics of the interfacial polymerization system of piperazine aqueous solution / trimesoyl hexane solution were systematically investigated. the results show that at a certain molar ratio between the two monomers, piperazine and trimesoyl, at the two phase interface, a dense functional layer of ultra low pressure, high permeating flux and high salt rejection formed by controlling the time of interfacial polymerization, such as the composite membrane ( i ), the concentration in water phase is 0. 4 %, and 0. 1 % in organic phase, and the polymerization time is 1 minute
本文主要進行了四個方面的研究，首先系統分析和研究了哌嗪水溶液均苯三甲酰氯正己烷溶液界面聚合體系特徵、界面聚合反應中各影響因素對膜性能的影響等，結果發現，當界面處兩相單體（哌嗪和酰氯）分子摩爾比為某一比值時，通過控制界面聚合時間（有機相處理時間） ，可以形成超低壓高通量高脫鹽的緻密功能層，如復合膜（ ） ，水相濃度為0 . 4 ，有機相濃度為0 . 1 ，聚合時間1min 。With the numerical solution, an internal condensation critical curve can be calculated out by condensation theory and depositing theory, on the curve, the enter water ability equal to the out water ability, which can be used as the basis to determine the occurrence of internal condensation. but the result doesn ’ t coincide with the real completely. in this dissertation, we plan to get the critical curve by practical experiment results, because that the enter water ability only relates to the condensation density and the out water ability only relate to the volume ratio of the pneumatics system
然而由凝結理論和沉積理論得到的計算結果往往與實際有一定偏差，本課題希望通過實驗的方法獲得內部結露臨界線，即系統進水能力和排水能力相等的曲線，由於系統的進水能力和充放氣過程中凝結水滴密度有關，排水能力和系統容積比有關，可以通過大量實驗總結出以凝結水滴密度和容積比表示的內部結露臨界曲線，作為判別內部結露是否發生的依據。The propagules of b. gymnorrhiza and a. corniculatum undergo some growth before becoming detached from the parent plant. they accumulated large amounts of ions during the development while the level of ion concentrations are consistently lower in their embryos compared to leaves of parent plant. before detachment, the growth of hypocotyls were reduced, the water content declined, while the osmotic potential was approaching to or more negative than that of the solution on which their parent plant vegetating
另一方面維持較大比例的有機滲透調節劑，控制細胞液中鹽離子的水平以減少代謝毒害；木欖成熟胚軸的密度接近或低於生境中海水的密度，適于隨水漂浮和傳播；胚軸內離子濃度呈下降趨勢，但最終以達到和母樹生境中的離子濃度水平相一致為目標。On the saturate concentration, the moisture density in the micro - holes was 100 times larger than the vapor density in the standard state, but only 8 % of liquid water. the water inside the plastic material was in a special liquid state. the delamination and the delamination recovery were observed by c - sam
當水汽濃度達到飽和時，在塑封材料中可以被水分子進入的有效體積內，實驗條件下的水汽密度為標準狀態下水蒸氣密度的100倍，為液態水密度的8 ，表明在塑封材料中的水分子以一種特殊的液態水形態存在。The paper works out the ice crystal spectrum distributing in the different macroscopic and micro - backgroud of the cloud ( ie, the thickness, the temperature and the supersaturation with respect to ice of the nucleation layer ). this paper also works out the amount of catalyst which is allowed in the cloud nucleation layer according to the different quantity of the supercooled water, the density of the supersaturation of the vapor with respect to ice. simultaneously, the paper discusses the i nfluence of remaining time when seeding artificial ice nucleus in the different ascending - velocity and altitude, and elicits the proper seeding altitude of the catalyst
以此解為依據，得出了不同均流時，人工引入冰核在核化層存留時間，再以此時間作為人工冰核凝華增長時間，求出不同的雲宏微觀背景（如核化層厚度、溫度、冰面過飽和度等）下的冰晶譜分佈，經和實際資料比對符合相當好。進而求出核化層中不同過冷水量、冰面過飽和水汽密度下雲核化層可允許的催化用量。同時討論了不同升速，不同高度引入人工冰核時對其存留時間的影響。The effect of the rise of ground water level was simulated by increasing the mass density of pore water in the soil elements between the initial and targeted ground water levels
通過逐步改變初始和終止地下水位間土單元中孔隙水的密度模擬地下水位上升的效應。The purpose of this thesis is to set up distributed control system of hot - pressing product line of mdf, in order to improve the level of control and management the hot - pressing production
本論文的目的便是為了建立中密度纖維板熱壓智能化生產線集散控制系統，以便提高中密度纖維板熱壓生產的控制和管理水平。With the action of shock, water drops undergo the process of deformation, fragmentation and atomization. the shock is decreased substantially only when density of water drops in air reaches a certain value
研究發現水滴在激波作用下經歷一個變形、破碎和霧化過程，只有水霧密度達到一定值，激波在水霧中的衰減才明顯。Our major products are as follows : concrete shuttering film faced plywood, mdf board, particle board, okoume plywood, birch plywood, poplar plywood, bingtangor plywood, maple plywood, pine plywood, fancy plywood and chipboard
我們的產品主要有：清水建築模板，中密度板，刨花板，奧古曼膠合板，樺木膠合板，楊木膠合板，楓木膠合板等各種人造板材。Abstract : through copolycondensation method, a phenol - melamine - urea - formaldehyde resin was prepared. the discussion was concentrated on the preparation method of the resin and it ' s application condition in pressing exterior - type medium density fiberboard
文摘:通過共縮聚的方法，制備了具有良好的耐水性能和膠合性能的苯酚-三聚氰胺-尿素-甲醛樹脂。著重討論了該樹脂的制備方法以及在壓制室外型中密度纖維板中的應用情況。Furthermore, author designs some tests, such as diffusion speed test of stress in soil under static load and sound wave test. by these tests, author verified that sound wave test can measure the stress in soil. comparing those aforementioned tests, we can know that their conclusions is coherent, so those conclusions also verify the feasibility of measuring stress in soil by sound wave tests
經理論以及試驗結果分析，靜荷載作用下土中應力傳遞速度試驗、聲波試驗以土中應力分佈傳遞規律的試驗及測試技術研究及前述室內模擬試驗，在土體含水量、密度變化情況下，三者所獲規律是一致的，初步證實聲波測試技術作為土中應力測試手段的可行性，為無損傷、不擾動測試土中應力做了探索性工作。分享友人