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久久精品国产88久久综合，在什么情況下會聚集、擴(kuò)散及釋放出來；這些過程對材料性能有什么害處丝袜第一页；它受什么因素影響以及如何控制它等等。20世紀(jì)中期這些問題就已經(jīng)被提出來二级黄片免费观看，而從70年代開始性爱爱视频网站，隨著聚變反應(yīng)堆的設(shè)計(jì)和聚變堆材料研究的進(jìn)展333aaa国产精品，更加明確它是一個(gè)需要解決的難題。

It is very likely that he whill not agree to our plan.

他很可能不會周章我們的計(jì)劃国产足交丝袜美女视频网站。

Today is a quite important festival in china which called Mid-autumn Day. What whill Do?

今天是中秋節(jié)国产一区精品推荐在线播放，中秋節(jié)在中國是很重要的節(jié)日，你準(zhǔn)備怎么度過呢日韩在线www.？

I whill, I whill forget it.

我會的Av性爱网站有哪些，我會忘了這茬子事兒的。

JUST DO WHAT YOU STAND , THINGS WHILL NOT ALWAYS BE SEEM.

今天是一個(gè)禮物免费毛片在线播出。