查询词典 F-22

This paper investigates the absolute convergence of the Fourier Laplace series concerning of some smooth functions defined on the unit sphere in R n,hereinto shows that:if f is 2([n4]+1) th continuously differentiable function on H r P,then the series ∑∞k=0Y kf converges uniformly to f.

讨论了n 维球面上某些可微函数类的Fourier Laplace级数的绝对收敛性，其中指出：设f是Hrp上 2 ( [n4 ]+1)次连续可微函数，则级数∑∞k =0 Ykf一致收敛到f参

Suppose Y is an absolutely continuous random variable symmetric about 0 with probability density function f and cumulative distribution function F.

假设Y是一绝对连续且对称於0的随机变数，其机率密度函数为f，而分布函数为F。

It was found that for large aperture ratios (the ratio of focal length of the primary to its aperture, as the f-ratio in modern cameras for instance), f/10 or more, the difference between spherical and paraboloidal mirrors was negligible in the performance of the telescope.

结果发现，大口径的比例（比例焦距初级到其孔径，由于架F -比率在现代相机举例来说）， f/10或更长时间，之间的差别球面和抛物面反射镜是微不足道的，在表现望远镜。

The FCT-150, a 6 fluorite triplet apochromat, yields exquisite images at f/7 or even f/5 with its optional focal reducer.

高桥FCT-150，采用6英寸的萤石三片APO物镜，能在f/7时产生高度细节的图象，如果采用减焦镜，能在f/5时实现相同效果。

Meanwhile the defects are also studied by means of the methods of EPR, PSL, thermostimulated luminescence and absorption spectroscopy. These results indicate that the principal defects are F centers and O〓 in PSL. O〓 centers are formed by O〓 ions substituting for F ions with a trapped hole The trap depth of two kinds of F centers is obtained by using thermoluminescent spectra.

同时还利用电子顺磁共振谱，光激励发光，热释发光和吸收光谱的方法，研究了其材料中缺陷的性质，实验结果表明在光激励发光过程中主要的缺陷是F心和O〓心，其中，O〓心是O〓离子替代F〓离子并束缚一个空穴而形成的局域中心。

The experimental products include crystal phase quartz, feldspar (alkila-feldspar, albite, K-feldspar), zinnwaldite and topaz, a melt phase and a trace vapour. The solid products were been studied by optics method, electron microprobe and X-ray analysis. The results show that liquidus temperature raises slightly and solidus temperature falls down obviously and that the upper temperature limit raises for the stability field of quartz and topaz, and falls down for the stability field of alkila-feldspar as F contents in crease.

实验淬火产物包括结晶相石英，长石(碱性长石，钠长石、钾长石)，铁锂云母和黄玉及玻璃相和微量流体，对固相淬火产物进行了系统和详细的显微观察及电子探针和x射线分析，研究了F对钠长花岗岩液、固相线温度、相关系和相组合的影响和含F钠长花岗岩的结晶序列和熔体演化、F在流体和熔体之间的分配及F对花岗质熔体结构的影响，对含黄玉矿物组合进行了一系列热力学矿物平衡计算，获得如下重要结论

METHODS: By using Vision Monitor visual evoked response imaging system, the standards for five obtained Flash Electroretinogram were recorded on 53 normal subjects (73 eyes), including F-ERG to a weak flash in the dark-adapted eye,F-ERG to a strong flash in the dark-adapted eye, oscillatory potentials, F-ERG to a strong flash in the light-adapted eye, and F-ERGs to a rapidly repeated stimulus.

应用法国Metrovision 公司生产的Vision Monitor 视觉诱发系统检测正常人53例73眼。F-ERG的5个标准反应，包括暗适应25dB弱光刺激时的反应、暗适应0dB强光刺激时的反应、振荡电位、明适应白色标准闪光刺激时的反应和明适应快速重复闪烁光刺激的反应。

By means of experiments of marker transfer,acridine orange sensitivity test,F' curring and mini-chromosome transformation it is.conchi-ded that the F' plasmid is always in an integrated state in the Sin strains and that the initiation of the replication of the bacterial chromosome is carrie...

标记转移、吖啶橙敏感性，F′质粒消除和mini-染色体质粒转化等实验说明，Sin菌株中F′质粒始终处于整合状态，并且在40℃中细菌染色体的复制由整合状态的F′质粒所带动。

There are no prominent variations of the micas in Li, F, Mn and Rb between zone c and zone d but sharp changes in these elements between zone d and zone e. In contrast to the primary micas in zone e, the altered micas in zone e show higher in F and Li but lower in Al. From zone a to zone e, the micas do not show remarkable variation in Na+K.

从c带到e带，随着Fe、Mg和Ti的减少，总体上表现为Al、Li递增，F、Mn和Rb递减的演化方向，但Li、F、Mn和Rb在c带和d带之间变化不明显，d带和e带之间却表现出急剧的变化。e带中的次生云母与原生云母相比，前者F、Li高而Al低，从a带到e带，Na+K变化不明显。

Random noise for a fiber optic gyro mainly consists of wh ite noise and1/f γ fractal noise, which characterized by longˉterm correlation, selfˉsimilarity and1/f γ spectral density with 1/fγpower law.

光纤陀螺随机噪声中包含了白噪声和具有长程相关性、自相似性及 1/f γ类型谱密度特点的一种非平稳随机噪声———1/f γ类分形噪声。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。