且

We consider Lienard equation X + fx'+ g =e and obtain that if and for any periodic function or almost periodic function e it has a periodic solution or almost periodic solution.

本文考虑Lienard方程x十fx'＋g＝e，我们得到：当且时，对于任意周期或概周期。数e，它有周期或概周期解。

For Lienard equation X +fx'+ ex = e, we obtain that if and for any periodic function or almost periodic function e it has a periodic solution or an almost periodic solution.

而对于Lienard方程x＋fx'＋cx＝e，我们得到：当c＞0且时，对于任意周期、或概周期函数e，它有周期或概周期解。

At present, there are many diagnostic model of the evaporation duct, such as P-J model, MGB model, NPS model and Babin model etc. They are based on Monin-Obukhov similar theory, just it is different that confirms the flux and character scale in the surface layer. These models are only applied for the normality and homosphere in open sea without considering the alongshore effect.

目前国内外蒸发波导诊断模式有P-J模式、MGB模式、NPS模式、Babin模式等，但其基本原理都是依赖Monin-Obukhov相似理论，只是用于确定近地层通量的和特征尺度的方法不同，且仅适用于定常和水平均匀的开阔海域，并没有考虑到蒸发波导的近岸效应。

It becomes the research focus of navy all over the world. Owing to the anomalous distribution of sea and land、coast landform、offshore wind and shoreward wind in shore, it often causes the alongshore effect of the evaporation duct. This effect will debase the veracity of the evaporation duct diagnosis.

然而由于其形成机制复杂，且在近岸沿海地区由于海陆分布不均，以及海岸地形和海陆风等因素的作用，会造成蒸发波导的近岸效应，这种效应会影响蒸发波导高度诊断的准确率。

He was not something sacred and aloof from the vulgar herd of men.

他 不是来自粗俗的牧羊人的神圣且冷淡的东西。

By far the most heavily traveled route was that between the Sol system and its first and most populous colony system, Alpha Centauri.

至此，最繁忙的星间商路在地球和它最初且最多人口的殖民地半人马阿尔法星间。

But the positive electrons produced by aluminium under the action of a source of alpha rays continue to be emitted for some time after removal of the source. The number of electrons emitted decreases by half in three minutes.

但是，在射线动能源作用下铝产生的正电子在动能源撤走后的相当长时间里仍继续被排斥出来，且排出的电子数量在3分钟后减少一半。

Orkut is a perfectly respectable online community, but of course something of an also-ran in a world now dominated by My Space and Facebook.

Orkut是一个极可敬的网上社区，但是，一些存在世上且被My Space和Facebook掌控的网上社区也同样可敬。

Based on the comprehensive analysis of five above-mentioned physiological and biochemical indexes of Alstroemeria spp.,it shows that No.1 treatment is superior to any other treatment; while both No.3 and No.8 treatments are inferior to control.

综观上述5项生理生化指标，以保鲜剂配方①变化最为平稳，且优于其他处理；而保鲜剂配方③和⑧变化最大，保鲜效果低于对照。

Unlike Altair,there is a practiced charm in this new hero;seduction and wit come easily.

不同于Altair，这个新的英雄的身上有一种老练的魅力；魅惑且机智。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。