查询词典 uranium 235

Fast reactor is a kind of fast neutron induced nuclear fissile uranium or plutonium -239 -235 and other type of reactor fission chain reaction.

快堆是一种以快中子引起易裂变核铀-235或钚-239等裂变链式反应的堆型。

His first task was to calculate the critical mass of uranium-

他的第一份工作是计算铀-235的临界质量，也就是维持链式核反应所需的质量。

Mainly use the -235 uranium or plutonium -239 and other heavy nuclei fission chain reaction mechanism made of nuclear weapons, known as fission weapons, or atomic bomb.

主要利用铀－235或钚－239等重原子核的链式裂变反应原理制成的核武器，叫做裂变武器，或称原子弹。

The isotope of uranium with mass number235,fissionable with slow neutron s.

锕铀铀的同位素，原子质量数为235，与慢中子发生裂变

A uranium isotope with mass number 235; capable of sustaining chain reactions.

铀的同位素，原子质量数为，能进行持续的连锁反应。

Measurements were also completed for neutron flux distribution and average fission fraction of 235U isotope in depleted uranium sphere.

测量了14MeV中子通量分布和贫化铀球中~(235)U同位素的平均裂变数。

An important feature of fast reactor are: running the one hand, consumption of fissile fuel uranium or plutonium -239 -235, etc.

快堆的一个重要特点是：运行时一方面消耗裂变燃料（铀-235或钚-239等），同时又生产出裂变。。。

Methods Neonate rats were irradiated with a single injection of 2 μl enriched*" 235 uranium( 235 U)into the lateral ventricle of the rat brain on the first day of life(less than 24 hours after birth)at doses of 0,1,5 and 10 μg of*" 235 U,respectively.

新生大鼠侧脑室注射 2 μl浓缩铀溶液后，多方位地观察不同浓度的2 35U对早期生长发育的影响，放射自显影示踪术观察脑内放射性核素行径定位。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。