查询词典 high frequency

In common drill processing of standard countersink,there are some disadvantages such as complicated operation,low productivity,high frequency of tools damage and the product quality can not be guaranteed.This paper gives an analysis on different states of front axle U-bolt fastening face during machining,and then makes a dissection of the ...

本文详细分析了汽车前桥U型螺栓紧固面加工过程中的不同状态，对采用标准结构锪钻加工过程的缺点进行了剖析，介绍了一种与标准锪钻结构不同的新型锪钻结构，其结构简单、使用方便、生产率高，产品精度可有效保证，值得在此类产品加工中推广应用。

Based on the high-frequency data, the realized volatility and realized covariance matrix was introduced systematically.

系统介绍基于高频交易数据的"已实现"波动率及由它拓展而来的"已实现"协方差矩阵。

Methods:The sonography of both sides of the neck was performed with a high-frequency linear array transducer in 20 healthy volunteers to show the side of the cricoid cartilage ring in both sagital and transverse planes.

20例临床无喉咽异常的志愿者作了颈前双侧纵与横切面的高频超声显像。

Through the establishment of mathematical model of arc pressure, this paper analyzes the improvement of high-frequency pulse current to arc characteristics.

本文建立了电弧压力的数学模型，分析了高频脉冲电流对电弧特性的改善。

Milankovitch orbit cycle consists of eccentricity, inclination and procession of equinoxes, which lead to palaeoclimatical cyclic transformation and form high frequency sequence, parasequence and beds with cyclic time of ten, four and two thousand years respectively.

米兰柯维奇天文旋回包括偏心率旋回、倾斜率旋回和岁差旋回，这几个轨道参数所驱动的古气候变迁，分别形成了周期为10万年(或40万年)、4万年及2万年的高频层序，即小层序组、小层序及小层单元。

In rectangular microwave resonator, under the action of high frequency electro-magnetic field and inhomogeneous static magnetic field, the electron cyclotron resonance motion of the plasma electrons have been studied.

对矩形微波谐振腔中的等离子体，在高频电磁场和非均匀稳恒外磁场作用下的电子回旋共振运动进行了讨论。

To evaluate the clinical value of high-frequency Ultrasonic in diagnosing the body sur-face soft organization cysticercosis.

目的 探讨高频超声对体表软组织囊虫病诊断中的临床应用。

Main products include: MJE13000 series, SCR, high-frequency sound tube, Darlington tube, such as Schottky diodes.

公司主要产品包括：MJE13000系列、可控硅、高频音响管、达林顿管、肖特基二极管等。

This method was used for the high frequency recovery of seismic data, and the result is satisfied.

将此稀疏反褶积方法运用到地面地震数据的高频恢复中，取得了较好的效果。

In the aspect of Opto—electrical signal processing, because the heterodyne interference signal is a high frequency fringe signal, how to measure the phases change of this signal——including the integer part of phases change over 2π and decimal part of phases change within 2π, is a difficult problem in electrical circuit technique.

一方面，该电路能同时测量出相位改变量的2π整数部分和2π以内的小数部分，从而实现了大量程和高精度的统一；另一方面，由于该电路是模拟电路，其最高工作频率可以远大于由数字集成电路组成的条纹计数电路，故在实际应用中，其工作频率的设计范围能够适应较宽的外差干涉差频范围，这就为高速激光外差干涉测量打下了基础。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失