高频的例句大全

In summary, dry film photo-resist was applied to the wafer level high frequency flip-chip packaging process.

总结来说, 本文证实乾膜光阻适用于晶圆级高频 覆晶封装 制程.

The purpose of this thesis is to apply dry film photo-resist for high frequency flip-chip packaging .

本论文研究的方向是将乾膜 光阻 应用于高频 覆晶封装 上.

Theoretical analysis and numerical examples show that the marching method is valid if the eigenvalues of the two-order partial differentiation operator is exactly approximated.

理论分析及数值实例显示，如果离散格式能够精确逼近二阶偏导算子的特征值，步进方法对高频波传播计算是有效的。

A series of ionospheric modification experiments were conducted at the Arecibo Observatory to research the fluctuation of the plasma lines enhanced by the high frequency electromagnetic waves.

为研究高频电磁波在电离层等离子体中激发的等离子体线的涨落，一组电离层加热实验完成于波多黎各的Arecibo射电天文台。

Experiment and clinical study of electrical capacitive coupling on acceleration of fracture healing

高频电容耦合骨折治疗仪促进骨折愈合的实验及临床研究

Objective To analyze ultrasonic feature of epididymis tuberculosis of caseous necrosis and its relationship with clinic and pathology.

目的分析干酪坏死性附睾结核高频彩色多普勒声像特征及其与临床、病理关系。

Conclusions The High Frequency Color Doppler and clinical features were helpful to diagnosis and differential diagnosis of the epididymis tuberculosis of caseous necrosis.

结论干酪坏死性附睾结核高频彩色多普勒声像与其解剖、临床及病理密切相关，超声对其诊断及鉴别诊断具有重要临床意义。

Temperatures Automatic Control System of HFW Welded Pipe Seam

高频焊管焊缝的温度自动控制系统

The voltage-current double-closed-loop control is employed to regulate the QSS full-bridge HFL inverter.

针对全桥式准单级高频链逆变电路完成了电压电流双闭环控制。

Introduced topology and principle of the half-bridge bi-directional current mode high-frequency link ( HFL) inverter, designed its control system based on DSP in detail.

分析了一种半桥双向电流源高频链逆变主电路的拓扑结构和工作原理，详细介绍了基于DSP的控制系统设计。

An original series-resonant current-mode high frequency link ( HFL) sine-wave inverter is presented in the paper.

提出一种新型的串联谐振电流源模式隔离的高频链正弦波逆变器拓扑结构，详细介绍了其工作原理。

The phase-shifted controlled voltage mode converters with HFL are deeply investigated.

本文深入研究了全桥移相控制电压源高频交流环节变换器。

But the voltage mode HFL inverters often have performance and application in high power application.

但是在大功率场合，一般采用的还是电压源高频交流环节。

Objective To evaluate the diagnostic role of high frequency ultrasonography ( HFU) and CDFI for breast carcinoma of the old female.

目的：探讨老年乳腺癌的高频超声图像和彩色多普勒表现。

Methods: HFU and CDFI finding were compared with pathology study in 80 cases with breast hyperplasia.

方法：对80例乳腺增生症患者的高频声像图及彩色血流表现作详细观察记录，与病理学组织类型进行对比研究。

Objective To investigate the applicability and clinical value of high frequency ultrasound ( HFU) in the abdominal check.

目的探讨高频超声在腹部检查中的适用性和临床价值。

Methods HFU and CDFI findings were compared in 42 cases with confirmed breast masses.

方法42个乳腺肿块经手术及病理证实，对术前高频声像图特征与CDFI表现进行分析与比较。

Methods images of HFU and CD of54 cases of such patient who underwent operation were analyzed retrospectively.

方法对54例经手术证实的视网膜脱离的高频超声和彩色多普勒血流成像进行回顾性分析。

They should know who is using HFT and to what standards they are held.

他们理应知道是谁在使用高频交易，以及有何标准。

HFT may not carry risks to the financial system but no one knows for sure.

高频交易或许不会给金融体系带来风险，但对此没人敢打保票。