The design of DDS and Periods Synthesizer technology possesses some characteristics including high performance, high performance-cost ratio and simple circuit structure, and so on. These technologies can be easily embedded into the control system of EIS.

The Application of Direct Digital Frequency Synthesizer and Periods Synthesizer Based on FPGA in EIS

基于FPGA的DDS和周期合成技术在EIS中的应用

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During the periods of seedling, attention should be paid to watering and fertilization to ensure healthy growth of crops.

在幼苗期，应该注重浇水和施肥，以确保农作物健康成长。

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Different crops have different periods of seedling, and farmers need to adjust their planting and cultivation strategies accordingly.

不同的农作物有不同的幼苗期，农民需要根据实际情况调整种植和栽培策略。

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Periods of seedling are crucial for the growth and development of crops.

幼苗期对于农作物的生长和发育非常关键。

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The Period of Warlords saw the rise and fall of many prominent military leaders, including Zhang Zuolin, Wu Peifu, and Yan Xishan.

军阀时期见证了许多杰出的军事领袖的兴起和落幕，包括张作霖、吴佩孚和阎锡山。

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The Period of Warlords lasted from 1916 to 1928, and was marked by civil wars, local rebellions, foreign invasions, and political corruption.

军阀时期持续了从1916年到1928年，其特点是内战、地方反抗、外国入侵和政治腐败。

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The Period of Warlords, also known as the Era of Warlords, was a chaotic time in China's history characterized by the emergence of numerous military strongmen vying for power and territory.

军阀时期，也称为战国时期，是中国历史上的一个混乱时期，特点是出现了众多军事强人争夺权力和领土。

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

人眼对光频率的敏感范围从每秒几百万亿次到数百万亿亿次。

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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。

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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。

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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。

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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。

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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。

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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。

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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。

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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。

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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。

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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。

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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

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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。

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