周期

Since H. Bohr proposed the theory of almost periodic function, this field has been developed greatly.

自H。 Bohr提出概周期函数理论以来，这一领域得到了很大的发展，其发展过程的一个主要特点就是其函数范围不断扩大。

In fact Cyatheaceae alias "Alsophila spinulosa,""tree fern", is a fern Cyatheaceae door for the dinosaurs left over from the period of rare and endangered plants, a "living fossil" known.

喜酸生土壤，常生长在山沟的潮湿坡地和溪边阳光充足的地方，常数十株或成百株构成优势群落。孢子体生长缓慢，生殖周期较长。

Parrondo's paradox describes that given two games, both of them are losing, when alternated in a periodic or random fashion, can produce a winning result. In this paper, we theoretically analyze the situation that game A and B are played in any alternating order using discrete Markov chain technique when modulo M is equal to four.

Parrondo悖论定律为对于给定的两个博弈，如果每个博弈输的概率都大于赢的概率，那么当这两个博弈随机或周期进行时就可能产生一种获胜的结果。

Meanwhile, the part of software has realized the function of the alternating electricity parameter analysis, the directing electricity parameter analysis and the demonstration, which is taking the sampled data in a sampling cycle as the examination object, and carrying on the analysis with the digital signal processing technology to the sampling data, and then programming with single chip.

软件部分则是以一周期内采集的数据为检测对象，用数字信号处理技术对采样的数据进行分析，用单片机进行编程，实现交流电参量和直流电参量分析及显示功能。

The alternating group iterative method for the dispersive equation with periodic boundary condition is presented.

给出了求解具有周期边界条件色散方程近似解的交替分组迭代法。

The use of this new product cycle alternating current frequency characteristics of the product by the shock force, led directly under the high end of the first metal hardness, it could easily lettering.

本新产品利用交流电频率周期特征，产品受迫震动，带动直杆项端的高硬度金属头，因此可以从容刻字。

Frequency is the number of complete cycles per unit of time of any periodically varying quantity, such as alternating voltage or current. It is usually expressed as Hertz or CPS.

频率频率是指周期性变化的事物在单位时间内完成的周期数，常用单位是赫兹或周期/秒。

A strong cycle of alternating booms and slumps has affected all types of development.

一个涨跌交替的有力周期已经影响了各种类型的发展。

The gamete-producing individual or phase in the life cycle of a plant having alternation of generations.

在一种植物的生命周期中产生配偶子的个体或阶段，从而引起一代代的更替。

The spore-producing individual or phase in the life cycle of a plant having alternation of generations.

在一种植物的生命周期中产生孢子的个体或阶段，从而引起了一代代的交替。

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