查询词典 high frequency

high frequency data ; value at risk ; nonparametric method

以收益波动为例，一般如在较低频率数据中具有成功表现的

These signals are instantaneous and nonperiodic, some of them have very high frequency.

这些信号是瞬变的非周期的单次脉冲信号，有的频率很高。

The acquisition of signal and several processing methods for Laser Doppler signal are introduced in chapter 4, and the Short-time Fourier Transfer method are tried to process the high frequency, wide bandwidth, wide dynamic range and nonstable signal of this system.

第四章介绍了对信号的采集和几种常用的多普勒信号处理方法，并根据本系统信号的高频、宽带、大动态范围、非平稳的特点，提出了采用短时傅立叶变化的方法来对信号进行处理，从而得到振动位移的变化情况。

If the expensive factory adopt oxygen , oast , salt bath furnace and coal stove etc. to heat a means, ask you to choose usage LW series high frequency induced warmup equipment.

如果贵厂采用氧气、烘炉、盐浴炉及煤炉等加热手段，请您选择使用LW系列高频感应加热设备。

The operating ambient temperature of high-frequency generator should be lower than 60℃.

高频发生器必须与本公司生产的同功率灯泡配套使用。

In this paper, the Maslov theory was introduced. By τ-p transform, seismic data is transformed from space to ,〖WTBX〗 and phase ( p s, p r ,τ) space. Then it is combined with Born inversion, and deduce the high-frequency asymptotic solution of migration operator amplitude in phase domain.

引人Maslov理论，利用τ-p变换将数据从空间分别变换到和及( p s ， p r ，τ)空间中，并将其结合到Born反演中，推导出了相空间偏移算子振幅的高频渐近解。

It is predicted that the function of mold oscillation can be substituted by imposition of an intermittent high frequency magnetic field in continuous casting of steel.

在间歇式高频磁场作用下，通过高速数码摄像机观测并研究了熔融金属弯月面的形状及其波动行为，建立了保护渣浸入深度的理论计算模型。

Objective To evaluate the effects of high frequency oscillatory ventilation in the hypoxicischemic encephalopathy with respiratory failure.

目的 探讨高频振荡通气在新生儿严重缺氧缺血性脑病并呼吸衰竭的临床应用。

The modulation of sound properties over a wide range of time scales is one of the most obvious characters of Oscine passerine\'s vocal, whose song contains many different kinds of syllables that consist of many more multiple song phrases. In oscine passerine, ipsilateral projections of RA to NXIIts innervates the ipsilateral syringeal muscles exactly, and thus they have strong ability of vocal control with variable tones, high frequency and higher lever of quality.

鸣禽鸣啭的最大特点之一便是其单次鸣唱时间长，鸣唱所包含的音节数量和音节种类繁多，因而由这些音节所组成的句型结构也是复杂多样富于变化，且由于NXIIts严格的侧别控制(每一侧核团只支配同侧鸣肌)，使其具有更强的控声能力，其鸣声音调变化幅度大，频率高，品质因数大，音色好，因而其鸣声也悦耳动听。

The development characteristics of karst in the different kinds of high-frequency sequences from the outcrop sections were studied.

对露头剖面中不同类型高频层序中岩溶的发育特征进行了研究。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！