频率

In the part of the displayer hardware design, the I/V convert circuit and the flame intensity signal processing circuit are introduced.

在介绍数据采集和频率测量原理后，给出软件设计和数据处理子程，频率信号处理子程，键盘子程等。

; 3 younger Dryas Only has reflection in the hundred-year-scales climatic curve, it is not evident in the curve of long period; 4 in the hundred-year-scales climatic curve, the last glacial maximum fluctuation as frequuently and 18-28KaBP was the stage in which the frequency fluctuation was the largest.

；（3）新仙女木事件仅反映在百年尺度的气候曲线上，在较长周期的饿曲线上不明显；（4）在百年尺度的气候曲线中，末次冰盛期气候波动频繁，其中18-28KaBP 是频率波动的最大阶段，但随着周期尺度的加大，气候的波动频率逐渐趋于均匀。

The results of χ2 test showed that the frequencies of genotypes in different breeds were significantly different (P＜0.01).The frequencies of mutation genotypes in Yorkshire were significantly higher than Duroc and Landrace.According to the above results,we can speculate the difference of the frequencies of genotypes may be the results of long term choice pressure.

统计结果发现基因型频率分布与品种有关，大白猪突变基因型频率显著高于长白和杜洛克，本研究推测分布上的差异可能是由于长期的选择压力造成的。

An experimental set-up is designed to measure the load-deflection curve and the natural frequencies of the elastica. The measured load-deflection relation agrees with the theoretical prediction very well. On the other hand, the measured natural frequencies do not agree very well with the theoretical prediction, unless the mass of the moving clamp is taken into account.

我们设计一组实验装置以量测弹性板条的受力-变形曲线以及自然频率；受力-变形曲线的量测结果与理论值相当吻合，而自然频率的量测结果与理论值并不相符，但考虑滑动夹持端质量后，理论与实验值相符许多。

The formulas from an interface relaxation equation for the calculation of specific relaxation time and capacitance dispersion frequency are related to the electrophysics parameters of the grain and grain boundary.

界面驰豫方程确定的特征驰豫时间和电容弥散频率计算式，与晶粒和晶界的电物理参数相关，弥散频率的计算值与实验结果定性相符。

The extremities were titanic, and there was no response to touch stimulations.Our results suggested that Pentobarbital sodium inhibited neuronal firing through GABA_A receptors, therefore the local field potentials and neural firing rates were inhibited; Urethane acted on many kinds of receptors including inhibitory and excitory ones, so the local field potentials did not change significantly; however, because of the multiform receptors on the neurons, the changing of firing rates to different neurons were not the same; Ketamine mainly acted on the NMDA receptors, therefore the local field potentials and neural firing rates were enhanced, and most neural firing rates would be increased.

从这三种麻醉剂的底层作用机制来看，戊巴比妥钠通过作用于GABAA受体对神经细胞发挥抑制性作用，因此表现为场电位和神经元放电的降低；氨基甲酸乙酯同时作用于多种受体通道，既有兴奋性受体，也有抑制性受体，因此，对场电位的影响不大，但对单个神经元来说，每个神经细胞上的受体通道分布差异较大，因此，单个神经元的放电频率变化会有所不同；盐酸氯胺酮主要作用于兴奋性的NMDA受体，故整体场电位活性增加，多数神经元的放电频率也会有所升高。

The filaceous algae with bigger body could be damaged moreeffectively than spherical ones with smaller body in both growth inhibition and cellremoval.

不同藻类细胞中的气囊及藻体尺寸不同，谐振频率存在差异，因此最佳的超声频率不同；随声强的提高，溶液中的空化强度会随之增长并趋向饱和，抑藻和除藻的效果也趋向饱和。

Denaturing high performance liquid chromatography and direct sequencing in conjunction with DNA pooling were used as possible strategies for augmenting the efficiency, economy, and throughput of SNPs detection in the finless porpoise.

选择2个已知的江豚SNPs，将扩增产物按基因频率制备成0-50%的11 个DNA池，分别用于直接测序和DHPLC分析，以探讨两种方法检测SNPs时的效率及制备DNA池时对基因频率的要求。

Secondly, some influences of fringing field are taken into account , an effective dielectric constant is introduced ,and the resonant frequency expression is modified as well.

在某些情况下，谐振频率需要被调谐，为此，在基片和地板之间引入一层空气隙，可以改变微带天线的某些性能，特别是谐振频率。

As a result, drift acts upon the genotypic frequencies within a population without regard their relationship to the phenotype.

因此，漂变对群体内的基因型频率起作用，而不考虑基因型频率与表型的关系。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐