周期

According to this algorithm, it is shown that the bifurcated periodic solutions through Hopf bifurcations at the first critical value of delay are orbitally asymptotically stable on the center manifold and the bifurcated periodic solutions through Hopf bifurcations at other critical values of delay are unstable.

根据这一算法，发现在时滞的第一个临界值处通过Hopf分支产生的周期解在中心流形上是轨道渐近稳定的，而在其它临界值处通过Hopf分支产生的周期解在中心流形上是不稳定的。

The objective is to investigate whether the ratio for investment in IT is different in the different stage and the effect of financial performance for investment in IT is changed.

因此，本文主要在探讨企业在不同的生命周期阶段，其资讯科技投资的比重是否会有所差异，以及企业处在不同生命周期阶段，资讯科技投资对於企业绩效之影响是否也会有所不同。

The viewpoint on enterprises should be dynamic and evolutionary, and the analysis on enterprises should not be confined to the method of static and equilibrium.

首先，本文建立了企业生命模型，阐述企业的生命特征，对比企业的生命特征与生命体的生命特征；研究企业的生命周期，对不同的生命周期阶段采用不同的变革方式。

This causes an outwards mass ejection which forms the superwind of the AGB star or the strong stellar wind of the giant star.

研究还表明，湍流压效应造成7M〓AGB星的氢燃烧壳层产生周期为50年的脉动现象，同时使氦燃烧壳层提前发生和周期变短。

In order to measure motion characteristic and dynamic parameters of MEMS resonator in every moment based on the technique of stroboscopic imaging, clear motion images in one cycle were obtained.

为测量MEMS 谐振器周期运动过程中各个时刻的运动特性及其动态特性参数，基于频闪成像原理得到了MEMS 谐振器一个周期内各时刻的清晰运动图像，利用块匹配技术对MEMS 谐振器的运动图像进行处理，从而得到其特性参数，为MEMS器件的设计提供重要参考。

In this paper, a free vibration equation of the semi-rigid frame structure is built. The formula to calculate the natural periods is deduced. Furthermore, the effects of semi-rigid connection on natural periods are studied.

建立了半刚性连接框架结构的自由振动方程，推导出半刚性连接框架结构基本自振周期的计算公式，分析了连接刚度对基本自振周期的影响。

Do not leave your helmet in the sun (or on the back window shelf of your car) as sunlight reacts with the helmet and after a time will weaken it.

安全帽更换周期和其他安全用品更换周期请查阅公司已经下发的《个人安全用品管理规定》）。

Wolf further defined the average length of the cycle 111 years, that is, the 11-year sunspot cycle.

沃尔夫进一步确定了周期平均长度为111年，即太阳黑子的11年周期。

One of the outstanding questions facing solar physicists is the origin of the solar magnetic cycle: What drives the 11-year sunspot cycle?

太阳物理学家面临的突出问题之一是太阳磁周期的起源：是什么推动了11年的太阳黑子周期？

For example, the sunspot cycle and the allied magnetic-polarity cycle have been linked to periodicities discerned in records of such variables as rainfall,temperature, and winds.

例如，太阳黑子的周期以及相关的磁极性周期被科学家与诸如降雨量、气温、风等可变性因素的记录中所能辨别出的周期性联系起来。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。