properties of groups 中文意思是什麼
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Effects of functional groups on the friction properties of self - assembled monolayers
官能團對自組裝分子膜摩擦特性的影響 -
Some properties of rough invariant subgroups and rough quotient groups
粗糙不變子群的若干性質與粗糙商群 -
Then, analytical work was carried out as follows : the ultimate analysis and physi - chemical analysis of the pyrolytic oil comprised a sketch of the fuel properties of the oil ; then, through the distillation analysis of the oil, the fraction composition of the " unrefined " oil was known. after that, a general knowledge of the aromaticity and saturation of the hydrocarbons in the oil was provided by the outcome of the ft - ir functional group analysis. also, from the analysis, the form of the polar functional groups and their distribution in different fractions of the oil were learned
文中首先對不同熱解溫度下熱解油產率進行分析討論，然後，針對熱解油品質進行了一系列分析：通過元素組成和理化特性的分析，對熱解油作為燃料特性有了一個大致了解；通過實沸點蒸餾分析，得到熱解油作為一種未提煉油的餾分分佈，並為后續熱解油餾分的細入分析提供了前提；通過對熱解全油和各窄餾分的ft - ir官能團分析，對熱解油的芳香性、不飽和性有了整體的了解，並且清楚了熱解油中的極性官能團存在型式及其在熱解油不同餾分中的分佈。 -
The finite element analysis of 3d seepage field for surrounding rock mass of cavern groups of underground powerhouses was performed based on the nodal virtual flux method for solving the non - pressure seepage field and the improved drainage substructure technique for accurately simulating the complex seepage behaviors of densely distributed drainage holes, with emphasis placed on the seepage properties of the anti - seepage concrete curtain and drainage curtain in the anti - seepage and drainage system
摘要在求解無壓滲流場結點虛流量法的基礎上，結合可精細模擬密集排水孔復雜滲流水力行為的改進排水子結構技術，付某地下廠房廠區洞室群圍巖區三維滲流場進行了有限元求解分析，著重研究了防滲排水系統中的帷幕和排水幕的滲流特性。 -
The research shows that students misunderstand the relation between force and motion. gravity and action / reaction ; that in dc circuit, students of different age groups have the belief of " consumption of current ", " clashing currents " and " the battery as a constant current generator " ; that in understanding the concepts of electricity students lack th e knowledge of relating the micro with the macro ; and that students have serious difficulties in understanding the propagation of mechanics wave, the speed of wave and superposition, and do not make a distinction between the initial conditions and the medium properties of the system
具體表現在：學生對力和運動的關系、重力和平衡、作用力與反作用力存在一些誤解；對直流電路，不同年齡的學生不同程度地存在電流消耗、碰撞電流、恆定電流源等觀念，而且對電學概念的理解缺乏宏觀與微觀的聯系；學生在機械波的傳播、波速、波的疊加上存在嚴重的困難，對于機械波的傳播學生不能區分初始條件和媒質特性，並錯誤地將動力學某些觀念與機械波進行類比。 -
The strongly residually - finite properties of some infinite soluble groups
無限可解群的強剩餘有限性 -
Syntheses and adsorption properties of chelating resins containing n, s functional groups
雜原子功能基螯合樹脂的合成及其吸附性能 -
Oligochitosan is not only water - soluble, non - toxic, biocompatible but also possesses versatile functional properties of chitin and its derivatives, such as polyelectrolite properties, the presence of reactive functional groups, gel - forming ability, high adsorption capacity, bacteriostatic, fungistatic and antitumour influence, and thus it has attracted more and more attention in the field of biology. previous investigations have shown that chitin and its derivatives have immunoenhancement activities
殼寡糖是由3 10個n -乙酰氨基葡萄糖殘基或氨基葡萄糖殘基通過- 1 ， 4 -糖苷鍵連接而成的寡糖，它具有良好的水溶性、組織兼容性，在生物體內易降解，同時也具有抑菌、抗腫瘤、調血脂、調節免疫及活化腸道雙歧桿菌等多種生理功能，因此已成為眾多領域的研究熱點。 -
Anion recognition properties of synthesized receptors synthesis and anion recognition properties of receptors with phenolic hydroxy groups
含有酚羥基化合物的設計合成及陰離子識別研究 -
Thirdly, in consideration of the monitoring of pore - water pressure of dam and roadbed, a novel pore - water pressure sensor structure for simultaneous measuring pressure and temperature has been designed. then groups of experiments have been carried out to show the properties of pressure measuring, temperate measuring and temperature self - compensation
第三，基於光纖bragg光柵應變、溫度測量原理，結合大壩及公路軟基等巖土工程的要求，研製出一種新型的壓力、溫度可同時測量的光纖bragg光柵滲壓計，並以壓力傳感特性為重點對其進行了實驗研究。 -
Furthermore, it was shown that load - displacement of pile groups and load distribution on pile top were affected by properties of soil and stiffness ratio of piles to soil, and by length, diameter, spacing, and number of piles
在此基礎上，分析了剛性承臺條件下超大群樁基礎的荷載位移曲線變化規律以及樁頂荷載分佈規律受樁土剛度比、樁長、樁徑、樁距、樁數、土性等因素的影響規律。 -
Based on a certain engineering practice, by analyzing many laboratory and in - site test data together with two groups of loading test, the variable regularity of physical mechanics properties of foundation soil is discussed
根據某工程實例，通過室內外大量試驗數據的分析，並結合兩組靜載荷試驗，探討了地基土長期荷載作用下，土的物理力學性質的變化規律。 -
The dispersion of mmt and the properties of composites were basically determined by the nature of organo - mmt and the polarity of the polymer chains. the intercalated nanocomposites could be explained in terms of the formation of " ladder " structure due to the excessive polar groups on the polymer chains which adhere adjacent silicate sheets
插層高分子鏈的極性基團含量要適宜；否則，極性基團將相鄰片層「膠粘」形成穩定的「梯形」結構，導致高分子鏈插層受阻，易形成插層型納米復合材料。 -
Evaluation of glass fiber / epoxy prepreg, aramiel fiber / epoxy prepreg and glass fiber / phenolic prepreg quality during storage was made using physicochemical analysis methods. the relation between reactive groups content in resin matrix and exposure temperature and time was studied. the changes of the mechanical properties of the composites made by the prepregs at different stages of the storage were shown
研究了玻璃纖維環氧樹脂預浸料、芳綸纖維環氧樹脂預浸料以及玻璃纖維酚醛樹脂預浸料在儲存條件下，樹脂基體活性基團含量與儲存溫度、儲存時間的關系及對復合材料力學性能的影響，取得了預浸料體系的質量控制參數。 -
Synthesis and mesomorphic properties of tetrafluorotolane - based liquid crystals with fluorinated polar end - groups
含氟極性端基取代的四氟二苯乙炔類液晶的合成與相變性質 -
Organic dyes and polymer with fluorescence are found and synthesized. different groups of oel films and oelds are prepared. the relationship among component, structure and properties of organic films of materials and devices are studied
本文研究了有機電致發光器件的結構、電致發光機理、薄膜制備技術：尋找和合成了具有發光性能的有機染料及高分子材料，並制備了多種組合的有機電致發光薄膜及器件；研究了有機電致發光材料及器件的薄膜成分-結構-性能之間的關系。 -
The impacts of the volume of end groups on the properties of synthesized polymers were also investigated. all the polymers had lower melting points, which indicated that the polymers could easily turn into a liquid crystalline state
考察了橫向液晶基元含量對聚合物溶解性、液晶態和化學結構的穩定性的影響，以及末端基大小對聚合物性質的影響。 -
The second approach is to use the concept of discrete logarithm. understanding this concept requires understanding some properties of multiplicative groups
第二種方法就是運用離散對數的概念。要掌握這些概念首先需要了解乘法群的概念。 -
The mechanical characteristics of the above groups of matching have been investigated. corrosion behavior was studied both by experimental and numerical approaches. the mechanical properties of partial corrosion and entire corrosion in the reinforced concrete structure were analyzed
通過鋼筋混凝土的腐蝕試驗，本文研究了局部銹蝕鋼筋和全部銹蝕鋼筋在鋼筋混凝土結構中的力學退化性能，並用「坑蝕」和「剝層」的有限元模型對其進行了數值分析。 -
Synthesis and properties of poly ether ether ketone ketone poly ether sulfone ether ketone ketone copolymers with pendant cyano groups
聚醚碸醚酮酮共聚物的合成及性能研究
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