查询词典 fraction

China's stockpile of fissile material is a miniscule fraction of that of the United States.

中国裂变材料的储备，比起美国的来小很多。

Based on the technology of automatic curve fitted, the peak shape parameters and peak shape law in ether fraction of P.

在优化条件下，虎杖乙醚组分的HPLC分析可在60 min内完成，当中的常量成分都能够得到较好的分离度。

The classic non-premixed flame structure is analyzed based on flamelet assumptions and the connections between temperature and mixture fraction are carried out in the adiabatic condition.

通过引入小火焰的假设，分析典型非预混合小火焰结构，推导出绝热状况下缸内温度与混合比质量分数的关系。

As the first attempt, this paper applies the laminar flamelet model to the typical diffusion combustion in diesel engines. A database of the laminar flamelet for a DI engine is built up in the phase space of the mixture fraction with the scalar dissipation rate as parameter.

以KIVA-3程序为基础，摒弃其原有的化学反应模型，模拟内燃机缸内多维湍流流场，并补充求解混合分数的时均值及其脉动均方值的湍流输运方程，得出各曲轴转角下混合分数的时均值及其脉动均方值的缸内空间分布。

The laminar flamelet model in combination with joint probability density function transport equation of mixture fraction and turbulence frequency is used to simulate fluctuating behavior of radiative source term in turbulent jet diffusion flames of hydrogen.

采用κ-ε湍流模型、标量联合的概率密度函数输运方程和层流火焰面模型相结合，模拟氢气自由扩散火焰中辐射源项湍流脉动特征。给出了主燃区内辐射源项湍流脉动的频率图。辐射源项的样本点分布集中，大约95%以上的样本落在其系综的±3倍方差以内，频谱图为单峰

To simplify Hu Ying and coworker's mixing model according to the gel's characteristics, and to revise the Flory's physical entanglment elasticity model, a concept of non-gaussian-short chains and interlooping chains is introduced which results, in a super-short and interlooping chains fraction Ψ and the number of effective segment N.

含离子凝胶分子热力学模型则在上述工作的基础上，进一步考虑了大分子网链中离子氛之间的静电排斥作用，并假设凝胶内活动离子的扩散作用服从唐南平衡，导出了新的含离子凝胶的分子热力学模型。

It was estimated pulp properties with Runkel ratio more than 1 would be harder in tension for fiber and less oriented fiber to make paper into fluffiness (Casey,1980), with flexibility coefficient less than 0.5, the paper had medium tensile strength, burst strength and folding endurance, with slenderness ratio no less than 75 that be the paper of medium tearing strength but suitable beating with per cent of wall fraction less than 40 per cent would be good paper (Rydholm, 1967) while fibers completely oriented to get higher tensile and burst strength.

牙髓腔的财产据估计超过1比率将难以在紧张、纤维少使纸纤维成蓬松型、弹性系数低于0.5，该报中等抗拉强度、爆裂强度和耐折、与细比不少于75文件中被撕裂，但适当强度击打元墙上分数占不到40%将好的文件(rydholm， 1967)而获得较高的完全纤维拉伸强度和爆裂。

Circulating fluidize bed boiler ; dense phase ; combustion fraction ; mathematical model

循环流化床锅炉；密相区；燃烧份额；数学模型

A low in-band phase noise FM frequency synthesizer has been depicted in this paper. It bases on the fraction N PLL frequency synthesizer, and the THD of the system has been improved greatly by this closed loop modulation mode.

研制一种低带内相位噪声的立体声FM频率合成器，该合成器基于小数分频锁相环技术，利用闭环方式对载波信号进行调制，显著提高系统的THD。

Those listed by UNESCO represent only a small fraction of China's numerous forms of folk art. An ancient civilization with a history of over 5,000 years enjoying cultural diversity created by its 56 ethnic groups, China boasts a wide variety of intangible cultural heritage. It released its first national intangible cultural heritage list in May 2006, incorporating 518 entries.

相对于中国浩如烟海般散落在民间的文化艺术来说，入选UNESCO的这几项只不过是沧海一束。5000多年文明史、56个民族多元文化生态，造就了中国多姿多彩的非物质文化遗产。2006年5月，中国公布了第一批国家级非物质文化遗产名录共518项。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。