查询词典 universal constant

The globalization of economic development, the rapid development of computer, and the constant expansion of mathematical theory and methods make mathematics be an important part and the thinking source of the contemporary high-tech, and be a universal implementation technology.

经济发展的全球化、计算机的迅猛发展，数学理论与方法的不断扩充使得数学已经成为当代高科技的一个重要组成部分和思想库，数学已经成为一种能够普遍实施的技术。

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This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学，分为两个部分，第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中，聚集标度性质的普适性，即使用透射电子显微技术观测聚集粒子簇的分形结构，使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学，胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态，当加入电解质NaCl溶液时，碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短，从而降低静电排斥能垒，引起胶粒发生不可逆聚集，加入电解质NaCl的浓度为1.00mol/l时，碱式碳酸钇胶粒进行快速聚集，经历扩散控制聚集机理，形成结构疏松、更为开放的分形聚集粒子簇，其分形维数为1.82，碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律，与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致，表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的，首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数，并且其值与Smoluchowski聚集速率理论预期相符。

For Carlos Santana, it is a constant celebration of the human spirit and universal brotherhood shared by all.

对卡洛斯·桑塔纳来说，这是对大家所共享的人文和博爱精神的盛赞。

The importance of starlike inner race no-flash die forging process of automobile constant velocity universal joint is introduced.

介绍轿车等速万向节星形套闭塞模锻工艺的必要性，通过数值模拟方法研究该工艺过程，研制出了可生产应用的闭塞模锻液压模架，并进行了工艺试验，研究结果对汽车关键零部件闭塞模锻工艺选择和模具设计提供了技术指导。

The military in particular needs a constant supply of fresh, universal donor blood for battlefield situations when normal supplies from donors can quickly run out.

对于军队而言，人造血可以满足其对大量新鲜血液的需求。

This quantity is called the universal gas constant .

这个量叫做普适气体恒量。

These two laws can be combined to form a single generalization of the behaviour of gases known as an equation of state, PV = nRT, where n is the number of gram-moles of a gas and R is called the universal gas constant.

这两个定律可以结合构成气体行为的一般式，称为状态方程式：PV=nRT，此处n是气体的克莫耳数，称为理想气体常数。

These two laws can be combined to form a single generalization of the behaviour of gases known as an equation of state, PV = nRT, where n is the number of gram- mole s of a gas and R is called the universal gas constant.

这两个定律可以结合构成气体行为的一般式，称为状态方程式：PV=nRT，此处n是气体的克莫耳数，称为理想气体常数。

In which T k is the mean kinetic temperature; D H is the heat of activation, 83.144 kJ·mole 1 (unless more accurate information is available from experimental studies); R is the universal gas constant, 8.3144 × 10 3 kJ·mole 1 ·degree 1; T 1 is the value for the temperature recorded during the first time period, e.g., the first week; T 2 is the value for the temperature recorded during the second time period, e.g., second week; and T n is the value for the temperature recorded during the nth time period, e.g., nth week, n being the total number of storage temperatures recorded (minimum of 52 weekly entries) during the annual observation period.

公式中Tk代表平均动力温度；⊿H代表激活的热能，83.144KJ.mole-1（除非从试验研究中能得到更精确的信息）；R代表气体常数，8.3144×10-3KJ.mole-1.degree-1；T1为第一时间段记录的温度数值，例如，第一周；T2为第二时间段记录的温度数值，例如，第二周；Tn为第n时间段记录的温度数值，例如，第n周，n为记录的贮存温度的总数（每周一次记录，在每年的监测周期内最小为52次）【注释：所有温度T，为绝对温度，单位为开尔文。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。