ultra high frequency

Financial Econometrics Study on Ultra-high-frequency Data

甚高频交易数据的金融计量研究

The frequency characteristics of partial discharge in transformer oil and in the air are studied, and the attenuating characteristics of ultra high frequency ( UHF) signals in metal tank and in the air are measured in high voltage laboratory.

研究了变压器油中局部放电的频率特性，并与空气中局部放电的频谱特征作了比较；超高频信号在金属箱体内的传播具有振荡特性；

Methods: 120 pieces of normal epiderm were got by negative pressure suction and 22 cases patients vitiligo epiderm were wipe off by XH-ultra-high frequency cosmetic apparatus, then auto-transplant the normal epiderm to the vitiligo.

方法：采用XH超高频美容仪去除白斑区表皮，结合负压吸疱法在供皮区取皮的方法治疗22例白癜风患者，共移植皮片120片。

RFID systems use low frequency, high frequency, ultra high frequency or microwave.

RFID系统常见的工作频率有低频、高频、超高频和微波。

In the ultra high frequency system, the frequency compounder section of the transmitting frequency is operated with DDS/ PLL technology.

在甚高频系统中，射频的的频率合成器部分采用DDS/PLL技术。

Ultra high frequency 625-line PAL colour system

超高频625线PAL彩色系统

Today, human market makers have largely been replaced by ultra-fast computer systems trading with high frequency.

如今，人类做市商基本上已经被从事高频交易的极速电脑系统取代。

In a few spheres of finance, such as high-frequency trading, it is possible that ultra-short durations cause more harm than good.

在金融的某些领域，比如高频交易，存在超短期限弊大于利的可能。

High-frequency trading uses algorithms to trade at ultra-fast speeds often 1,000 times faster than the blink of a human eye seeking to profit from fleeting opportunities presented by minute price changes.

高频交易中，电脑算法执行超高速交易，其速度经常比人眨眼快1000倍，以寻求从微小价格变化带来的短暂机会中获利。