性质
- 与 性质 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The great inviolated place had the ancient per manence which the sea can not claim .
这块没有经骚乱过的伟大地区有着自古以来永远不变的性质,这种性质连大海都不能与之相比。
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The relation between accessibility of amino acids and the property of enzyme was discussed, and the relation between accessibility of amino acids and the isoelectronic point of enzyme was studied.
酶总是在一个特定的pH范围内发挥功能。酸碱性质是它的一个重要的理化性质,等电点是它的一个重要的参数,研究它有利于更好的认识酶的功能。
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The socles and Jacobson radicals are important tools for characterizing the structure and properties of rings and modules.
环论和模论的主要任务是刻划环与模的结构和性质,而环与模的基座和Jacobson根是刻划环与模的结构和性质的重要手段。
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On the basis of molecular design and assembly, the polyoxometalate compounds supported by Keggin, Dawson, lacunary Keggin, and Silverton-type etc. polyanions on the basis of well-known and novel polyanions as building blocks were successfully synthesized by the hydrothermal technique, which are"decorated"or"bridged"by organic N-donor and/or O-donor ligands. The study on synthetic conditions and rules for these hybrid compounds and characterization by X-ray crystallography, spectroscopic, thermal, electrochemical and magnetic properties are carried out.
本文主要利用水热合成方法,从分子设计及组装的思想出发,借助不同N和含O的有机配体对多金属氧酸盐阴离子结构进行&修饰&或&桥连&,合成了一些以饱和Keggin结构、饱和Dawson结构、缺位Keggin结构和Silverton结构等阴离子为构筑模块的多金属氧酸盐化合物,研究了这些化合物的合成条件及规律并对它们的晶体结构、谱学性质、热性质以及磁性质进行了研究。
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The following conclusions have been drawn:(1) According their field and petrologic characteristics and building upon previous works, Late Mesozoic and Cenozoic mafic dikes form Jiangxi province are complex in rock associations which are compose of lamprophyre and gabbro-diabase and diabase and diabase-porphyrite, are mainly distributed into three north-north-eastern strike belt including Xingzi-Shanggao-Pingxiang and Dexing-Yujiang-Xiangshan-Jian-Shangyou and Caotaobei-Dajishan.
本论文选择了江西省晚中生代以来的基性岩脉为研究对象,运用矿物学、元素和同位素地球化学及K-Ar测年等研究方法,首次较为系统地研究了江西省晚中生代以来的基性岩脉、与地壳拉张有关的基性侵入岩体的地质地球化学特征,并利用对其形成时代、源区性质的研究来探讨中国东南部地壳拉张期次、地幔性质等地球动力学背景中的关键性问题。
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The efforts that have been made to explain optical phenomena by means of the hypothesis of a medium having the same physical character as an elastic solid body led, in the first instance, to the understanding of a concrete example of a medium which can transmit transverse vibrations, and at a later stage to the definite conclusion that there is no luminiferous medium having the physical character assumed in the hypothesis.
为了解释光学现象,人们曾试图假定有一种具有与弹性固体相同的实体性质的介质。这种子尝试的结果,最初曾使人们了解到一种能传输横向振动的具有上述假定所以认为的那种实体性质的发光介质。
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The paper analyze it from these aspects: Firstly, in the communism, when the survival necessity and feast necessity are satisfied enough, the self-fulfillment necessity will become the most important necessity in people's life. The freedom labour is in the course of self-fulfilling. Secondly, the"truth""good"are united in the labour , which make it possess the nature of beauty. Thirdly, in the game, people disremember the outside bondage and enjoy the happiness and freedom. Compared with the game, the freedom labour has many same characters and is more fascinating. Finally, the labour and the people's development have many affinities: In primeval, the autonomic labour was corresponded with the people's"primordial enrichment". In private owned society, alienation labour was corresponed with the people's macrocephalic development. In the communism, the freedom labour will corresponded with the all-powerful development. The development of human history incline to the trend that history makes everyone develop all-powerfully, the freedom labor will be the final choice.
真正自由劳动所具有的特质,将使其成为人们生活的第一需要:(1)从需求的层次性看,在未来社会,当生存的需要和享受的需要得到满足之后,自我实现的需要将成为人们生活中最重要的需求,而真正自由的劳动就是自我实现的过程;(2)真正自由的劳动在于真、善在劳动中的统一,使得劳动具有美的性质;(3)在游戏中,人们忘却了外在的束缚,得到快乐和自由的体验;较之游戏,真正自由劳动具有诸多相同的性质,将更加引人入胜;(4)劳动和人的发展有着密切的关系:原始时代的自主劳动对应着人的发展的&原始的丰富&;私有制时期,劳动的异化对应着人的发展的畸形、片面;到了共产主义社会,自由劳动将对应着人的自由全面发展。
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Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80~100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100~300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).
将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能,且合金内的V元素会向表面富集,因此,钛合金真空热处理和表面涂层的烧结温度不能过高,即应低于其相转变点;通过对生物活性梯度涂层的组成和结构的设计,分析和计算了梯度涂层内的应力大小和分布,结果表明:对于本研究,当成分分布系数n=1.5时,可以获得较合理的涂层力学性能,即在沉积开始时,采用富含BG颗粒的悬浮液,以便在钛合金侧获得同底层BG有良好过渡的富BG涂层;梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定,改变成分分布系数,只能改变涂层内应力变化的趋势;涂层的厚薄不影响涂层内的应力分布规律,但涂层越薄,涂层内的应力变化越快,但这并不意味着涂层越厚越好,因为涂层越厚,涂层允许的变形越小,对于应用于弯曲受力部位的涂层而言,涂层应薄一点为好(50μm);而对于仅纯受剪切应力的部位,如牙根种植体,涂层可适当加厚(80~100μm);通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现,它们在水溶液体系中很难发生电沉积;在无水乙醇溶液中,HA颗粒带正电,可在阴极钛合金片上发生均匀的电泳沉积,而BG颗粒则带负电荷;利用复分解反应法,可以制得100~300nm的HA,通过诱导HA在BG颗粒表面结晶,可对BG颗粒进行表面包覆,获得了被HA包覆的BG颗粒,改变了BG颗粒表面的带电特性,使BG和HA颗粒在无水乙醇中均带上正电荷,从而实现了HA和BG颗粒在阴极上的共沉积。
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The content of SMBC,SMBN and mineralizable carbon 〓 in profiles of Fluvio-marine yellowsoil,Fluvio-aquie soil,Quaterary red clay were all decreased with increasing depth,but themineralizable nitrogen 〓 was not true.
相关性分析表明,葡萄糖〓在0~3d的周转速率与土壤代谢熵〓呈显著性正相关;3~28d内,葡萄糖〓周转速率与土壤理化性质和生物学性质都无显著的相关性;28~294d内,葡萄糖〓周转速率与土壤总有机碳、全氮、CEC呈显著或极显著负相关,与土壤砂粒含量呈显著性正相关。
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The decisive influencing factor of viscosity in carboxyl-methylation was cross-linking reaction. Carboxyl-methylation was the main influencing factor of solubility and swelling capacity in modification of high content amylose starch. The structure and gelatinization property of different amylose content were analyzed with an Olympus Vanox BHS-2 multi-function optic microscope, and the results were as follows. The structure of ordinary cornstarch was different from the high amylose; gelatinization temperature and pH value of starch were affected deeply by amylose content, but had little difference between the gelatinization of high content amylose starch contained 50% and 70% amylose; pH value had much more effect than temperature on the gelatinization of high content amylose cross-linked starch. Monochloroacetic acid consumption, alcohol concentration and pH value influenced the starch carboxyl-methylation. When alcohol concentration was 60%, pH value 10, monochloroacetic acid/starch mass ratio 55%, the carboxyl-methylation of high amylose cross-linked cornstarch had the best result. With the In-Vitro digestibility model and biodegradation experiment, the digestibility and biodegradability of high amylose cornstarch and its modified starch were detected.
采用Brabande粘度测定仪和Olympus Vanox BHS-2型多功能光学显微镜等分析手段对链淀粉含量50%和70%的高链玉米淀粉及其交联和交联羧甲基化淀粉的结构和性质进行了表征和分析,结果表明,普通玉米淀粉结构与含链淀粉50%和70%高链玉米淀粉结构不同;高链淀粉比普通淀粉难糊化,高链改性淀粉糊化受pH值影响较大,受温度影响较小;淀粉的冻融稳定性、透光率、溶解度、膨胀度和粘度受链淀粉的含量和改性的影响,但是,链淀粉含量超过50%时,则链淀粉含量对淀粉的膨胀度和溶解度影响不大;改性淀粉性质的影响因素中,影响粘度主要因素是交联反应,影响透明度、溶解度和膨胀度主要因素是羧甲基化改性;一氯乙酸用量、反应时乙醇浓度及碱性条件都会影响高链淀粉及其交联淀粉的羧甲基化改性效果,制备羧甲基化改性淀粉的最佳工艺是在pH值为10的60%的乙醇浓度介质中按一氯乙酸/淀粉质量比为55%进行取代反应。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。