In some countries that secrecy stemmed from the military uses of nuclear fission.

In fission processes fission fragments are very radioactive.

在裂变过程中所产生的碎片极具辐射性.

The energy produced during atomic nuclear fission is great enough to destroy the whole city.

原子核裂变时产生的能量足以摧毁整座城市.

When atoms split, the process is called " fission ".

原子分裂时, 其过程被称为 “ 裂变 ”.

Coal, solar energy, and fission and fusion fuels are the most important ones.

煤炭 、 日头能以及裂变聚变燃料是其中最主要的几种.

However, this technology is extremely expensive; one tunnel can use the combined output of 25 fission reactors.

但是这项技术非常昂贵; 一个量子通道需要25个裂变反应堆同时提供能量.

The average fission width can be obtained from a statistical argument.

能够从统计理论得到裂变宽度.

Uranium fission may be accomplished by either fast or slow neutrons.

铀的裂变可用快中子或慢中子来完成.

But with the use of fusion instead of fission, that difficulty is resolved.

但是用核聚变方法代替核裂变方法之后, 这一困难将得到解决.

Nuclear fission is more promising, but nuclear fuel is also finite.

核裂变发电更有前途, 但核燃料也是有限的.

The fissionchamber system is composed of vacuum targe chamber fission target and large area PIN detector.

针对目前的离子注入实验都是在真空状态下进行的事实,设计了真空内置式大气靶室装置.

The discovery of fission was a seed dropped on fertile ground.

裂变的发现犹如种子落入沃土.

The latter property of nuclear fission has a significant implication.

核裂变的这后一个性质有一个重要的应用.

As a result, there is less attenuation of the gamma rays from the fission products.

这样一来, 从裂变产物中发射出来的γ射线的减弱就要少一些.

Nuclear energy is liberated as a result of nuclear fission.

原子能因核裂变而释放出来了.

Energy is released by the fission of atomic nuclei.

能量是由原子核分裂释放出来的。

Nothing less than a fission bomb can ignite a thermonuclear reaction.

威力比一个裂变炸弹小的任何东西都不能点燃热核反应.

Coal, energy, and fission and fusion fuels are the most important ones.

煤炭 、 太阳能以及裂变聚变燃料是其中最主要的几种.

In hole in the center of this system is placed a subcritical sphere of fissionable material.

在这个系统的中心圆洞中放置一枚次临界的球形可裂变物质.

In some cases the stresses may be maximum strength and a fissure or surface check results.

表层的压应力能使干燥第一阶段发生的表裂弥合,给顾主留下似乎没有表裂的的印象.

Objective To investigate the MRI characteristics of choroid fissure cysts of the brain.

目的探讨脑部脉络膜裂囊肿的MRI表现特点.