The human eye is sensitive to light frequencies that range from a few hundred trillion to several hundred quadrillion periods per second.

The CPU of a computer is rated by its clock speed, which is typically given in megahertz or gigahertz, representing millions or billions of periods per second respectively.

计算机的CPU以其时钟速度进行评定，通常以兆赫或千兆赫为单位，分别表示每秒数百万或数十亿个周期。

The frequency of the wave is measured in periods per second, or Hertz.

波的频率以每秒周期数或赫兹（Hertz）为单位进行测量。

The company's periods processing software allows for easy tracking of business expenses and generates accurate financial reports.

公司的期间处理软件可轻松跟踪业务开支，并生成准确的财务报告。

Periods processing in accounting involves closing out accounts at the end of each financial period and preparing financial statements.

会计领域中的期间处理涉及在每个财务期间结束时结账并编制财务报表。

The company's periods processing system is designed to automate the calculation and processing of employee pay and benefits.

公司的期间处理系统旨在自动化计算和处理员工的薪酬和福利。

The stock market often experiences periods of benefit when economic indicators are positive and corporate earnings are strong.

当经济指标表现良好，企业盈利强劲时，股票市场通常会经历一段受益期。

The program provides periods of benefit for job training and career development for eligible participants.

该计划为符合条件的参与者提供职业培训和职业发展的受益期。

The government budget includes periods of benefit for certain industries which are deemed vital to the nation's economy.

政府预算中包括对某些被认为对国家经济至关重要的行业予以一定的受益期。

A mobile, battery-operated patient-lift device has a time monitor which records periods of action of the lift device, and thereby permits computation of patient lift frequency over selected intervals of time.

翻译：一种移动的电池操作病人升降装置，具有一个时间监视器，记录升降装置的行动周期，从而允许计算在选择的时间间隔内病人升降次数。

Periods of action during which riders should accelerate and then recover before the next burst of speed are simulated through a field of finite elements.

通过有限元素场模拟骑手需要在加速然后恢复之后，在下一次爆发速度之前进行行动的周期。

Division of seismic periods and analysis of seismicity features in Xinjiang region

新疆地震活动分期及活动特征的分析

The history of bone remodeling theory experiences three main periods: qualitative analysis, quantitative analysis and fix quantify value simulation by computer.

人体骨组织有着复杂的结构和生理机制，骨重建理论经历了定性分析、定量计算和计算机定量数值模拟三个阶段。

In the second chapter, starting from the time perspective, England sheep industry is divided into three time periods for specific analysis and presents the characteristics of the sheep industry in each time period.

第二章从时间角度入手，将英国的养羊业划分为三个时间段来进行具体分析，并阐述了每个时间段养羊业的特征。

Life insurance companies for the development of different periods of time for analysis.

对寿险公司不同时期的发展进行分析。

Discussion on Historic Experience of Reform and Opening during the New Periods Analysis of Health Reform in China

论新时期我国改革开放的历史经验--对我国卫生改革的评析

The variation law of annual maximum peak discharge time series at Cuntan station of the upper reaches of Yangtze River has been probed, including trends and periods analysis.

从趋势分析和周期分析两方面分析长江上游寸滩站年最大洪峰流量演变规律。

But new research suggests roughly two-thirds of couples start out as friends and maintain a platonic2 relationship for long periods before sparking a romance.

但是新研究显示，约三分之二的夫妇或情侣是从朋友开始做起的，在碰撞出爱情火花之前维持了很长一段时间的柏拉图式的关系。

Several periods of time later the butcher opens the mail and finds an envelopes from the lawyer:$ 20 due for a consultation2.

过了一段时间，肉店老板在查看邮箱时，看到了一封律师寄来的信，上面写着：请付20美圆的律师咨询费。

Like the Athenians, the Visigoths also disappeared, but not before they had ushered in the period known as the Dark Ages.

同雅典人一样，西哥特人也消亡了，不过是在他们带来一个被称作黑暗时代的时期之后。

I think there's still a minus sign problem somewhere.

我感觉在某个地方仍然有负号的问题。