由下而上
- 与 由下而上 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 city has well transportation with neighborhoods become a megalopolis. They can share their society, economy, culture and resource. The mega city needs to operate efficiently. The population and globalization catalyze the cities in Asia. The density of space development and the efficiency of the operating become the territorial accent. This study is about globalization to arise from mobility space. Taichung city become a megalopolis that is center. The city has ambition to become an international city. It needs to know, how to affront that spaces of ambulant city advance maneuver.
在面对城市规模巨大化下,城市运作的效率成为发展上的方向,而其中以亚洲城市由於人口及在全球化的催化下,於空间上发展的密度与使用上的效率更具有区域上的特色,故本研究试图在全球化下的流动空间的想法上,重新为已具有都会区人口规模的台中市,寻求一个城市目标朝向国际化发展的城市,应如何面对流动城市的发展策略。
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The rheological character of a polymer often appears as shear-thinning. Most polymers behaviour in a solution can be explained by the polymer chain or hard sphere theory. Other than that, shear-thickening polymer solution also exists. Its behavior can be explained by dilatant theory, which suggests that the shear-thickening of the solution is due to the swelling of the polymer particles. This phenomenon often occurs in suspension or emulsion. Solution exhibits a mixed behavior can also be found whose behavior is such that shear-thinning occurs under low shear force and shear-thickening occurs under high shear force. Under this circumstance, the viscosity versus shear force graph exhibits a spoon shaped curve. The rheological study can be applied to the dispersion of paint which can predict the dispersion effect of various polymer materials in solution.
中文摘要一般高分子聚合物溶液的流变行为多半呈现剪稀(shear-thinning)的现象,而大部分的高分子在溶液中的行为是以分子链或是硬球观点来解释,另外也有剪稠(shear-thickening)现象的高分子溶液,其流变行为则是以膨胀体观点来解释,即在高剪切力下,由於高分子团体积变大而使溶液黏度升高,这在悬伏液、乳液等常见;但也有在低剪切力下,溶液具有剪稀的行为,而在高剪切力下却成现剪稠的行为,在黏度对剪切力作图时,会呈现出一个勾形曲线的图形;流变行为的探讨可应用在涂布材料的分散技术上,以推测不同的高分子溶液对分散效果的影响。
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By using APDL(ANSYS Parametric Design Language), a new macro command is written to simplify creation of irregular polygon area in ANSYS.
然而ANSYS中给出的由下而上的创建平面命令,在需要创建大量不规则平面时,使用起来相当繁琐。
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We described that the nitro group is a stronger electron withdrawing and meta activating characters than the imide group, the amino and hydroxy are both electron donating groups and had ortho, para activating characters. The methyl group might have a steric hindrance effect in this reaction. Our results indicated that methyl group at the ortho position of the amino group on the benzene ring, the steric hindrance effect became stronger.
另一方面,由产率上的结果来看,可以得知硝基为强力的拉电子基团,会减少邻位和对位胺基的电子密度比间位多;而氢氧基与胺基是供电子基团,会增加邻位和对位胺基的电子密度比间位多;甲基取代对反应则只有立体障碍的影响,而且与反应的氨基成邻位存在下影响最大。
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They have one of the most awe-inspiring collections of stalagmites and stalactites found in the United States. A stalagmite is a cone-shaped mineral deposit that forms upward; a stalactite forms downward.
其为美国境内少数生有令人惊叹的石笋及钟乳石洞穴之一;因矿物沉淀而成的圆锥状石笋由下向上增高;而钟乳石则由上而下延伸。
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1A series ofω-alkylmercapo acid were synthesized by two methods:one involved the reaction of the appropriateω-bromoalkyl acid with mercaptide under the presence of base;the other method was used only for the long alkyl compound by the reaction ofω-alkenyl acid and alkanethiol in the presence of AIBN.
正是基于以上考虑,本论文探索了合成下沿带有硫醚官能团,而上沿带有偶氮官能团的杯[4]芳烃衍生物的方法,进行了以下研究: 1采用ω-溴代羧酸和烃基硫醇在碱性条件下发生反应,或由ω-烯基羧酸和硫醇在AIBN的存在下反应,得到了ω-硫醚羧酸,使用氯化亚砜将羧酸转化为酰氯。
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The results of in situ DRIFTS on propylene oxidation show that the allyl species originated from α-H abstraction of propylene were located at the wavenumbers of 1454 cm~(-1) and 1427 cm~(-1). The rate-determining step is the abstraction of an α-H abstraction from a lattice oxygen linked to a bismuth ion to form a π-allyl intermediate coordinated to a molybdenum ion. The metal-oxo group then attacks the allyl intermediate forming a σ-bonded oxygen-allyl species, which is in a rapid equilibrium with the π- bonded species. The σ-bonded species then transforms to acrolein by further abstraction of α-H. Such species as formate, carboxylate, carbonate transform to deep oxidation products. The acetone was derived from propylene by an enolic species at lower temperatures.
丙烯氧化反应体系的原位漫反射红外光谱研究结果表明,由丙烯脱氢生成的烯丙基中间物种吸收峰在1454cm~(-1)和1427cm~(-1)处;基于此提出了较完整的丙烯氧化反应网络:丙烯选择氧化生成丙烯醛主要经历丙烯脱除甲基上的一个H,生成烯丙基物种,该物种嵌氧生成σ-O络合物,脱氢得到丙烯醛前驱体,脱附生成丙烯醛;完全氧化产物是由催化剂表面上生成甲酸盐、羧酸盐、碳酸盐等形式的中间物种转化而成;较低反应温度下丙烯氧化生成丙酮,通过烯醇式中间物种氧化生成丙酮前驱体得到。
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A vapor-permeable and waterproof sole for shoes, comprising: a lower flat element made of shaped rubber-like material, which has a hollow upper region delimited by a border with air passage openings which extend laterally with respect to the ground resting plane; an upper element; a membrane made of waterproof and vapor-permeable material, which is interposed between said lower and upper elements at said hollow region; said lower and upper elements and said membrane being joined hermetically in the perimetric regions of mutual contact.
一种用于鞋子的透气防水鞋底,包括:一由成形橡胶类材料制成的平的下构件,它具有一中空上部区域,该上部区域由一边界界定而成,所述边界具有相对于着地抵靠平面横向延伸的通气开口;一上构件;一由防水透气材料制成的隔膜,该隔膜夹设在所述下构件和上构件之间,并在所述中空区域内;其中,下构件和上构件以及所述隔膜在它们相互接触的外周区域内密封地结合。
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According to the phytosociological theories and methods of Braun-Blanquet's school, the regional savanna vegetation of the dry-hot valleys of Yuanjiang river had been investigated. Based on the principle of fidelity degree, the typical 110 releves taken from every sampling stands of the dry-hot valleys were sorted up from below to upper into 15 Associations, then into 5 Alliances, 2 Orders and 1 Class. A synoptic classification system of Class-Order-Alliance-Association was established for the purpose to reflect deeply the characteristics of all syntaxa there in the aspect of plant component and their abundance-dominancy, presence, cover coefficient, life form, growth form, and ecological environment, community structure, species types and so on.
采用Braun-Blanquet植物群落学研究的理论与方法,对云南元江中上游干热河谷分布的植被进行考察研究,把各处取得较典型的110个样地记录按确限度的原则由下而上归类成15个群丛、5个群属、2个群目和1个群纲,建立了元江干热河谷萨王纳植被群纲—群目—群属—群丛分类系统综合表和15个群丛表,以全面深入反映全干热河谷植物群落各级分类单位中各植物种类组成的多优度、存在度、盖度系数、生活型和生长型等特征及其群落结构、生态环境和种型类别。
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I needed confirmation, so I swam over to one of the photographer's assistants, Mary Bell, and pointed up at this huge Indo-Pacific blue marlin.
当它接近水面,而你由下往上看时,几乎看不到它,我能看到的只有条纹,其它的引没在闪烁的光线中。
- 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。