查询词典 frequency histogram

The commonly used Gaussian pulse and Gaussian Monocycle cannot satisfy the FCC's frequency mask constraint well, in order to satisfy the request of coexistence and interference mitigation for the optimized waveform design, SSA (Soft-Spectrum Adaptation)-UWB scheme was proposed.

摘要常用的高斯脉冲及高斯单周不能很好地满足FCC的频率掩模约束条件，为了满足频谱共存、干扰避免的要求进行波形优化设计，我们提出了软频谱适配SSA（Soft-Spectrum Adaptation）-UWB方案。

In order to overcome the shortcomings of the monopole antennas, a methods of quasi-fractal is used, which decrease the resonant frequency.

为此，对HF频段的单极子天线进行准分形，有效地降低了天线的谐振频率。

Based on the concrete study of the Part II, we compare and analyze the monosyllable note adverb and the duplicate syllable adverb, then compare and analyze the quantity of each kind of adverb and it"s frequency of use, and analyze the adverb"s appearance position, the condition of using together. Finally, summarize and induce the characteristic of the adverb system of Gu Liang Zhuan.

依据第二部分的具体考察，首先对《谷梁传》中单音节副词和复音节副词进行比较分析，其次对各类副词的数量和使用频率进行比较分析，接着依次对副词的出现位置、兼类情况进行分析，总结归纳《谷梁传》副词系统的特点。

In the analysis of dynamics cutting angle, the following phenomenon is discovered first time: the minimize of dynamics clearance angle is not monotone decreasing with the vibration frequency , and appear peak value periodically, which exist is the disseparation region and approach the separation region.

在对振动钻削中切削刃上各点的动态角度的分析中，首次发现在振动钻削过程中动态后角的最小值不是随着频率或频转比的增大单调下降，而是周期性的出现波峰值，这些波峰值都出现在不分离区，而且是接近于分离区处，这是由振动钻削过程中的变速特性引起的。

Also we have monotone decrease of frequency.

此外，我们的频率单调减少。

At radio-frequencies the dielectric permittivity of cell suspensions are monotonic function of the measuring frequency and cell density.

微生物的存在会改变发酵液的电特性，发酵液在无线电频率范围内的电容率增量是测量频率和生物量浓度的函数。

Based on that the dielectric permittivity of cell suspensions is monotonic function of the measuring frequency and cell concentration at radio-frequencies,a new method for detecting cell concentrations on-line and in-situ is proposed .

利用发酵液在无线电频率范围内的电容率是测量频率与菌体浓度的函数，提出了一种实时在线检测发酵过程菌体浓度的新方法，设计了检测传感器和自动检测系统，并且实验验证了该检测方法及检测系统的可行

Result:Motherwort herb significantly increased the frequency and average amplitude of uterus slow waves of in rats.

分别给其腹腔内注射益母草水煎液 0.1ml，0.2ml及0.4ml，对大鼠子宫肌电活动的变化进行慢性实验观察。

A slip frequency control system of asynchronous motor used DSP as control center is presented, which apply to the electric tourist car.

介绍一种以DSP为控制核心的异步电动机转差频率控制系统在电动游览车中的应用。

This controller can be used not only in ordinary AC motor-driven,it can also drive ordinary AC motor in a small frequency range.

这种控制器不但可用于一般交流变频电机的驱动，也可以在小频率范围实现对普通交流电机的驱动。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。