查询词典 radioactive

Now, on the other hand, we're being told, in effect, Sure everything changed, but not radioactive bombardment and its rate of decay -- they have remained at the same level for billions of years.

"现在，在另一方面，我们被告知，实际上是"相信一切变了，但没有放射性轰击及其衰减率--他们都保持在同一水平，为十亿年。

What's more, an organism could conceivably seem to be, by today's assumptions of yesteryear's radioactive bombardment levels and rate of decay, thousands or even millions of years old only days or months after its death.

更何况，一个有机体可以想象似乎是，今天的假设的脸庞上的放射性水平轰炸和衰减率，十万甚至几百万年的历史，只有几天或几个月后，其死亡。

Judging on the radioactive rays whether they penetrated through the truncated right angle cone shield configuration. A hypothetical circumscribed rectangular parallelepiped of the they penetrated through the truncated right angle cone shield configuration. A hypothetical circumscribed rectangular parallelepiped of the truncated right angle cone shield configuration is also presented. The methods simplified the camber equation and reduced the calculation time significantly.

在判断放射线是否穿透此圆锥台体时，又提出了圆锥台形屏蔽体的假想外接长方体的建模方法，将曲面方程联立解的复杂计算简化为一次代数方程的简单计算，大幅度地缩短了计算时间。

There were no radioactive rectitis and other side effect.

无放射性直肠炎等副反应。

A method is described for the determination of ruthenium in solidified radioactive waste by flame atomic absorption spectrometry.

研究了火焰原子吸收法测定放射性废物固化体浸出液中模拟核素钌的测定方法。

This paper introduces the application of integrated geophysical investigation, including high precision magnetic, multielectrode method and GPR , to systematically detect a radioactive material source sealed in lead container stored in a chamber buried underground,which has been missed.

采用综合地球物理勘查技术，包括高精度磁测、高密度电法和地质雷达对某处遗留于地下的铅封放射源进行了系统探查，对所获得的各类异常数据进行了分析处理，并指出了放射源所在的具体空间位置。

Some tritium is used in self-luminous materials (e.g., for watch dials) and as a radioactive tracer in chemical and biochemical studies.

有些氚用作自发发光的磷光剂和钟表面盘，在化学和生物研究中作为放射性示踪剂。

But hang on -- how do we know that radioactive atoms don't senesce ?

但是，听清楚了—我们怎么知道放射性原子不衰老？

But hang on -- how do we know that radioactive atoms do not senesce ?

但是，听清楚了—我们怎么知道放射性原子不衰老？

In the language of biogerontology, radioactive atoms die but they don't senesce .

用生物老年学家的话说，放射性原子死亡了，但是它们并没有衰老。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。