Using the theory on delay functional and impulsive differential equation, sufficient condition with time delay for the permanence of the system was obtained. And it was proved, that time delays, pulse vaccination and vertical transmission can bring obvious effects on the dynamics behaviors of the model.

運用脈沖時滯泛函微分方程理論，獲得了含有時滯的持久性的充分條件99国产欧美精品久久久蜜芽，并且證明了時滯、脈沖免疫與垂直傳染對模型的動力學行為能夠產生顯著的影響。

To solve these problems, we must make it clear that: why helium could state in these materials; what disadvantages whill bring to the performance of these materials by these processes; what the influence factors of these processes and how we could control them. These problemes were came up from metaphase of 20th century, and that from 1970s, with the design of fusion reactor and the research development of its materials, we make it sure that these problems must be solved firstly.

為了解決這些問題就需要搞清楚：氦在材料中為什么能夠滯留369超碰在线观看，在什么情況下會聚集、擴散及釋放出來欧美日韩人妻自拍；這些過程對材料性能有什么害處国产无码在线一区二区202；它受什么因素影響以及如何控制它等等。20世紀中期這些問題就已經被提出來4438最新全国免费视频网，而從70年代開始www.91视频女人，隨著聚變反應堆的設計和聚變堆材料研究的進展，更加明確它是一個需要解決的難題国产丝袜另类专区。

If some educational theories are too fusty to keep up with the development of the society and the professional educators don't realize it, the communities can bring pressure to the educators to take reformation.

如果教育理論太老跟不上時代步伐亚日韩中文字幕，那么社區(qū)將對教育者施壓改革，這跟主題有什么關系人人操人人摸人人看人人爽？主題是教育少不了社會717西瓜理论福利电影，而不是社會將會對教育產生什么影響

It is a beautiful way to bring conclusion to living a fuller life with all the gamut of emotions and experiences.

這是多麼美的方式帶著全部的情緒和生活經驗把一個豐盈的生活做一個總結。

One may struggle to bring about social reforms, or to find God, or to create a better relationship between oneself and one's wife or husband, or with one's neighbour; one may sit on the banks of Ganga, worship at the feet of some guru, and so on.

一個人可能為了改革社會久久毛片免费视频、為了尋找神亚洲一区AV、為了制造和配偶、鄰居之間更好的關系而奮斗欧美在线免费A片，或坐在恒河邊膜拜上師a日韩精品在线看。

It has a low BOM cost and can fit well at around $100 target price, even with all the chipset and peripherals accounted in. Besides, it poses a great advantage of smaller process technology of 45-nanometer over AMD's Geode processor which can help to bring down the whole final product's size and promote better heat dissipation.

它有一個低BOM成本，可適合在100美元左右的目標價格，甚至與所有的芯片組和外圍設備占英寸此外国产系列熟女丝袜喷水，它構成了很大的優(yōu)勢較小的工藝技術的45納米的AMD公司Geode處理器可以幫助降低整個最終產品的規(guī)模和促進更好的散熱一级毛片精久久久久久久。

I hope that i can get on well with my friends and bring happyness to them .

我希望我能把快樂帶給我的好朋友。

We firmly believe that we will bring notebook computers field a subversive industrial revolution with GHI's top technical team, strong financial support, hard-working and serious working attitude.

我們堅信www.欧美.com，通過GHI人頂級的技術團隊超碰97乱伦、雄厚的資金支持、勤勉嚴謹的工作態(tài)度性爱午夜视频，我們的筆記本事業(yè)必將為先進的電腦領域帶來一次顛覆性的產業(yè)革命成人播放日韩在线观看网站视频下载！

Calcic phosphor is the bases of form ossification road and tooth, both lacks fetal skeleton with respect to development undesirable, bring about gibbosity, the mother's body still can give view cramp, osteoporosis.

鈣磷是形成骨路和牙齒的主要成分，二者缺乏胎兒骨骼就發(fā)育不良在线免费播放你懂的，導致軟骨病蜜臀tv，母體還會出觀抽筋、骨質疏松操操操人人人。

I want that the girl who own a beautiful woman takes her to the place that I said once I want a rightness of wingses and fly to see that scenery that sees from no one I hope world peace, no longer have the war and hungers If I am an all-powerful lord, I and would carry out the fine commitment of everybody whether that can bring real happiness for people or not Suddenly I heard the voice, beautiful dream son that a shell fall to the ground is waked up with a start The war, hunger still exists, I also still single one person walk wing in this so-called" the war district", that beauty however is an imagination to come out the gift of give the oneself.

我想擁有一個美女的女孩帶她去我曾說過的地方我想要一對翅膀有关强奸的黄片小视频、飛去看那從沒有人看過的風景我希望世界和平、不再有戰(zhàn)爭與饑餓啊如果我是萬能之主国产无码Av动漫在线观看、我會實現每個人美好的承諾那樣是否能給人們帶來真正的幸福突然我聽到了一顆炮彈落地的聲音永久免费域名18勿进、甜美的夢兒被驚醒了戰(zhàn)爭、饑餓仍然存在著国模逼、我也仍舊單身一人走在這所謂的\"戰(zhàn)爭地帶 \"中文字幕在线爱、那美麗的翅膀不過是想象出來送給自己的禮物。