查询词典 difference frequency

Based upon our first paper and continuing the "Standard candle" classification by use of the component linear distance D, we attain to the following statistical correlation of some type of Quasars with largest angular diameter Q_: the correla- tion between visual magnitude and redshift; the correlation between its absolute magnitude, radio-luminosity of single frequency, integral radio Iuminosity, colour in- dex difference Q and D.

本文在第I部分的基础上，继续用类星体射电子源线距D进行"标准烛光"分类，经过统计分析，得到了子源角径最大的一类类星体的一些统计规律：它的视星等与红移之间，它的绝对星等、单频射电光度、积分射电光度和色指数差Q与D之间有很好的相关性等。

The fundamental and higher-order harmonic ultrasound fields of a zeroth-order Bessel ultrasound field and focused Gaussian field in absorbing medium are computed and simulated by solving the KZK equation using a frequency domain finite difference method.

通过频域有限差分方法求解KZK方程，对吸收媒质中的零阶Bessel超声场、Gauss聚焦超声场进行计算，得到基波和高次谐波声场的数值解和仿真图，计算仿真结果验证了上述的理论结论。

We sustain that the peak frequency can become a well classificatory criteria of BL Lac objects and conceive that there are some systemic difference between XBLs and RBLs, and the difference is not only the result of choice.

作者在相关领域作的一些研究工作，我们的工作进一步支持了峰频作为BL Lac天体的一个有效的分类标准的观点，进一步猜想BL Lac天体的两个子类XBL和RBL的物理性质可能存在本质差异，而不仅是选择效应的结果。

The main idea of this method is: after the double difference ionospheric delay of rover station is eliminated, and other bias relating to frequency of carrier are ignored, the double difference ambiguities are directly searched by only one epoch data using the linear the relation between dual frequencies ambiguities and the integer characteristic of ambiguities.

该方法的主要思想为：当双差电离层延迟误差消除之后，并且忽略其它与频率有关的误差，不解方程组，直接利用模糊度为整数和双频数据之间的线性关系，对流动站的双差整周模糊度进行搜索。

The difference between dynamic performance and static performance of catalyst is studied by test. And the effect of A/F ratio fluctuation with difference amplitude and frequency has been studied.

对催化剂的动态性能和静态性能进行了试验对比，并针对不同幅值和频率的空燃比波动对催化剂性能的影响进行了试验研究。

In the double difference equation, the ambiguity can be divided into 2 parts, the first part is the integer one, the second part is the bias part caused by frequency difference.

在双差观测值方程式中，双差模糊度可分解为两项，第一项为整周项，第二项为站间单差非整周项，是由两卫星的频率差引起的。

Memorability: After two weeks, the average time of task completion, the average number of times of manipulation, and the average frequency of error occurrence decreased with significant difference. However, the rate of task completion in user's hands-on test increased without significant difference. In heuristic evaluation, the experts had found 5 problems against the guidelines regarding the memorability.

三、在可记忆性方面，两周后的使用者测试平均完成任务人数从9.4人增加为9.7人，完成任务平均时间从1分10秒降至40.1秒，平均操作步骤次数从12.4次降至6.1次，使用者平均操作障碍次数5.2次降至1.3次，除了在完成人数并未达显著，其他三项则有达到显著差异；在启发式评估，专家共提出五个违反可记忆性准则的使用性问题。

The effect of treatment is negatively correlated with the course of disease, generally, the effect is much worse with the course of disease is much longer; The effect is positively correlated with the course of treatment, it is better if the course of treatment is longer.The group of more than one year is much excellent than the group of less one year. The ex-electroencephalogram before treatment is normal, on edge and a little abnormal, the effect is better. As regards CT or MR result, there is difference between the effective group and the ineffective group. The result of CT and MR is negative, the effect is better, and the effect to demyelination and leukoencephalopathy is most worst.However,for the tipe of much abnormality, the effect is the most worst.The effect is related to course of disease.The effect is better if the course is shorter.There is no difference in the tipe of disease the symptoms before episode, the frequency of episode, the inducing reasons, the age, sex and so on.

病程的长短与疗效存在负相关关系，病程越长疗效越差；疗程与疗效存在正相关关系，疗程越长疗效越好；疗前脑电图的异常程度与疗效存在负相关关系，正常、边缘及轻度异常者，疗效较好，重度异常者疗效最差；无效组与有效组在CT及MR检查结果上有差异，有阴性者疗效好，阳性者疗效差，脱髓鞘及脑白质病疗效最差的趋势；疗效与性别无相关性；无效组与有效组在发作类型、既往病史、辨证分型、发作先兆、疗前发作频率、诱因、发病年龄、就诊前所用药物方面无差异。

Records of herbaceou s vegetation were obtained from sites where the zokor were trapped. The results showed that there are not difference between two type of habitats and between se x, but the frequency of the herbage composition had the significant difference.

研究结果表明，虽然两种栖息地之间的植被组成有极大的差异，但是高原鼢鼠的食物组成在两种栖息地之间和性别之间均无明显的不同，不同植物出现的频次却有明显的差异。

The relations between the potential difference and the discharging time when the discharge current is a step function as well as a step function containing high frequency vibrations, the relations between one-dimensional and two-dimensional spark locations and potential difference based on the thin wall model and the thick wall model have been studied.

仿真研究了放电电流为阶跃函数以及含高频振荡时电位差与放电时间的关系；基于薄壁模型和厚壁模型，仿真研究了电极下表面一维放电点位置和二维放电点位置与电位差的关系；对于确定的电位差，仿真研究了放电点位置的分布情况，说明两点输入不能唯一地检测出放电点位置，从而引入四点输入检测的思想。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。