小周期

To the later, this dissertation has been done transient dynamic analysis, calculated the stress intensity factors changing with the damp of asphalt pavement, the cycle of load action and the parameters of pavement structure.

应力强度因子最大值随荷载作用周期的变化呈倒"S"状变化，在高频和低频荷载作用时，逼近静载作用时的应力强度因子值，在一定的频率出现最大值和最小值，但应力强度因子的变化幅度不大。

The approximate analytic solution of displacement response which is excited by harmonic alternating current can be ...

考虑到问题的数学模型中含有小参数，周期交变电流激励下的位移响应的近似解析解可以用摄动解法得到。

The article predictes in farmer s increasing income fluctuation by the wavelet transform in 1976-2006.The Result shows that:Chinese armer income fluctutions appears the characteristic time scale 7 and 40 years keeping consistent with the periodic oscillation.

文章运用小波变换对1976—2006年间农民收入的波动关系进行预测分析，实证检验结果显示：全国农民人均纯收入增长具有7年和40年左右的特征时间尺度，与农民人均纯收入变化存在着7年和40年两个主要周期振荡保持一致。

In small batch production in a production flexibility, low cost, short processing cycle.

在小批量生产中，具有生产灵活性，成本低，加工周期短。

A long cycle for a big-ticket item or a series of smaller, more frequent sales.

是比较长周期的大单子，还是一系列频繁的小单子？

First, based on the measurements of absorption cross-section, the absorption characters of the main polluted gases in flue gas were deeply studied, and found that SO_2、 NO、 NO_2、 NH_3 had a character of approximate periods absorption at some wave band, which is a good chance of a new measurement introduced. Secondly, the factors about absorption cross-section of the gases measured, which affect on the measurement precision of DOAS, is studied deeply. The influence of pressure and temperature on absorption cross-section was given special research, and the compensated measures were given to the gases based on the character of the gases. Thirdly, in practical measurement, it must have been satisfied that the monochromator was consisted with the reference spectrum, which was based on absorption cross-section. In order to satisfy the consistency, the technique of reversion in the image was introduced, the reversions of spectrums were realized with wiener filter and noise elimination based on wavelet transform.

首先从吸收截面的测量入手，对烟气中主要的污染气体SO_2、NO、NO_2、NH_3的吸收特性进行详细研究，发现这些气体在局部区域具有准周期吸收特征，这为引入新的测量方法提供了契机；其次，对决定DOAS测量精度的被测气体吸收截面的诸多问题进行了深入研究，重点研究了压力、温度对被测气体吸收截面的影响，并针对被测气体的特征提出了相应的修正措施；再次，在实际测量中，要求所使用的光谱仪必须与以吸收截面为基础的参考光谱相匹配，为了满足匹配这一条件，文中将图像复原技术引入到光谱复原，使用维纳滤波和小波消噪实现了光谱的复原，将复原后的光谱与所使用光谱仪的仪器函数卷积，即可实现；最后，在对DOAS测量原理详细分析的基础上，对传统的最小二乘—差分吸收光谱法进行了详细的阐述，通过实验证实两点：1。

Ah, I am also a July 28 of 月经, you should be able to test the bar, most of them are good pregnant, my cycle is 28 days there have been relatively quasi-dare to August 24, when not to, I on the test, then there are two lines to the hospital on the 26th good for blood to confirm the pregnancy, then a few days I am also a breast nipple pain, especially when touched, as well as the past two days on my left breast around the nipple long a few small granules of the small point that seems to look at this line is like a reflection of early pregnancy

真巧啊，我也是7月28号的月经，你应该可以测了吧，多半是好孕了，我的周期是28天，比较准所以本来敢8月24号来的，当时没有来，我就测了一下，有两条线，26号到医院去抽血确认好孕了，那几天我也是乳房乳头很痛，特别是碰的时候，还有就是这两天我左边乳房乳头周围长了几个小的颗粒状的小点，看网上说的好像这个也是孕早期的反映样

Arabidopsis has good characteristics of small genome, simple structure, small plant, short life period, high propagating rate, self-pollinating etc.

拟南芥具有基因组小、结构简单、形体小、生长周期短、繁殖系数高、自花授粉等优点，且其基因组全序列测定工作已于2000年12月完成。

Totally enclosed switchgear and space footprint is small, not to the house-style 110; equipment, safe and reliable operation; be able to properly resolve the high pressure under the B, electrostatic induction, corona and interference protection of the environment; maintenance workload of the small , the overhaul cycle is long, install a short duration.

全封闭组合电器占用面积和空间小，均不到屋外式的110；设备运行安全可靠；能妥善解决超高压下B的静电感应、电晕干扰等环境保护问题；维护工作量小，检修周期长、安装工期短。

At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.

本文在广泛的、深入研究的基础上，应用多种信号处理手段来分析处理数据，同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨，本文进行了以下几项工作：（1）提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略；（2）提出了基于WVD分布的连续撞击响应信号的分离策略；（3）提出了基于对数谱拟合方法的钢—钢撞击响应求解模型；（4）提出了基于波形分析的非正常燃烧振动信号的诊断模型；（5）提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型；（6）提出了基于小波近似的喷油正时信号中燃烧位置的自动定位；（7）提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略；（8）提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。

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