Considering the fuel salt flow effect of the molten salt reactor, the neutron dynamic model was derived based on the particle conservation equations, and the critical problem was calculated by numerical method under three working conditions to study the flow effect to effective multiplication factor, fast neutron, thermal neutron and delayed neutron precursors distribution.

考慮新概念熔鹽堆燃料鹽的流動特性看免费5XXAAA毛片om，從基本的粒子守恒方程出發(fā)天堂精品视频在线综合网，推導(dǎo)了熔鹽堆的中子動力學(xué)模型，并采用數(shù)值方法對3種工況下熔鹽堆的臨界問題進行計算玖色视频在线，考察流動對有效增殖系數(shù)日韩精品电影在线观看播放免费、快中子分布、熱中子分布及緩發(fā)中子先驅(qū)核分布的影響欧美巨吊。

The neutron flux distributions are calculated from the 3D diffosion equations of two energy groups and six delayed neutron precursors by separaing the "time" and "space" variables.

堆芯中子通量分布采用分離變量法對兩群六緩發(fā)中子組三維擴散方程來實時求解57pao国产成视频一永久免费，并考慮慢化劑密度、硼濃度欧美一区性爱论坛、氙和釤中毒能看的黄色v网站、控制棒位置、燃料和慢化劑溫度A级视频欧美黄、燃料燃耗等因素對中子通量分布的影響日韩精品网站日韩在线播放视频免费。

In modern times some premillennialists have speculated on the trend of current events as possible precursors of the great tribulation, some even attempting to identify the antichrist with such candidates as Kaiser Wilhelm II and Mussolini.

在近代一些premillennialists炒作的趨勢，目前的事件盡可能前兆偉大的磨難婷婷五月丁香六月综合，有些人甚至試圖找出箴與這些候選人作為凱撒威廉二世與墨索里尼日韩一级婬片A片免费手机版。

Ainu origins have been investigated archeologically for many years, and we have a few materials here that represent some of the precursors to Ainu culture including Jomon materials which is one of the old cultures of Japan seen here and some Okhotsk culture materials in the next case.

考古學(xué)者對阿伊努人的起源研究了許多年，我們手頭上有一些展品是處于阿伊努文化之前的黄片地址免费，比如說古日本文明的其中之一亚洲,欧美,中文,日韩,视频骚虎视频，繩紋時期的器具，另一邊還有些鄂霍次克文化的物品国产精品呦交在线观看。