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Next, this unstable atom , this new radio-element which we have calle "Radio-phosphorus" decomposes exponentially with a half-life of three minutes. 第二阶段，这种不稳定的原子，即我们称之为“放射性磷”的新的放射性元素在3分钟的半排出期内呈指数级方式进行分解。
Next,this unstable atom,this new radio-element which we have called Radio-phosphorus decomposes exponentially with a half-life of three minutes. 第二阶段，这种不稳定的原子，即我们称之为“放射性磷”的新的放射性元素在3分钟的半排出期内呈指数级方式进行分解。
These unstable atoms disintegrate spontaneously, some very quickly, others very slowly, but in accordance with unchanging laws which it has never been possible to interfere with. 这些不稳定的原子会自发地衰变，有些衰变的很快，有些则很慢，它们的衰变遵循着各种不可改变的规律，而这些规律是不可能受到干预的。
Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction. 自动放射:自动地发出辐射,直接源于不稳定的原子核或是作为核反应的结果。
These unstable atoms disintegrate spontaneously,some very quickly,others very slowly,but in accordance with unchanging laws which it has never been possible to interfere with. 这些不稳定的原子会自发地衰变，有些衰变的很快，有些则很慢，它们的衰变遵循着各种不可改变的规律，而这些规律是不可能受到干预的。
Nuclear particles are forcefully ejected by unstable atomic elements, each with its own preferred method of releasing the overabundance of energy contained in its nucleus. 我们所有的人在日常生活中每天都受到来自地球天然放射性物质、身体内的放射性同位素、太阳和星球等所发出的核辐射射线的照射。
The atom bomb is of catholic concern. 原子弹受到普遍的关注。
That cannot get up an atom of sympathy for them. 那并不能激发起人们对他们的丝毫同情。
Scientists have unlocked the secret of the atom. 科学家已经揭开了原子的秘密。
The particles in an atom are infinitely small. 原子里的粒子极小。
There isn't an atom of truth in the rumour. 谣言中没有丝毫的真实性。
An atom bomb would destroy a city. 一颗原子弹能摧毁一座城市。
The price of gasoline is unstable. 汽油价不稳定。
Most of the countries in the region have unstable economies. 这个地区大多数国家的经济都不稳定。
No matter what substance it may be, it is made up of atom. 不管这是什么物质，都由原子构成。
The cause of flight of capital is the unstable political situation. 资本外逃是因为政治的不稳定。
The table is unstable because one leg is shorter than the others. 这桌子一条腿比其它的腿短，所以不平稳。
If it were gentle, only the more unstable rods fell. 若地震是微弱的，仅那些比较不稳定的杆子倒下。
There was not an atom of evidence to convince him. 没有一点能使他信服的证据。
The atom bomb is the offspring of the 20th century physics. 原子弹是20世纪物理学的产物。