查询词典 radioactive decay

The volume of radon chamber is 4 m3, the range of radon concentration is 370~20 000 Bq/m3, and the relative expanded uncertainty of measurement results is no more than 5.8%. The whole testing system can verify/calibrate the radon monitor and study on the radioactive aerosol of radon decay product.

装置氡室体积为4 m3，氡浓度测量范围为370~20 000 Bq/m3，氡浓度值测量结果的相对扩展不确定度不超过5.8%，可用于测氡仪器的检定校准和氡子体放射性气溶胶的实验研究。

Each radioactive nucleus of a particular kind is responsive to a fixed decay probability per unit time.

每个特定类型的放射性原子弹对单位时间内一个固定的衰变几率作出响应。

The half-life is the time taken for half of the atoms of a radioactive substance to decay.

的半衰期是花费的时间为半原子的放射性物质腐烂。

Atoms in a radioactive substance decay in a random fashion but at a characteristic rate.

原子的放射性物质衰变的随机方式，但利率的一个特点。

Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.

人们通常用矿物中所发现的各种放射性元素的衰变率来计算地质年代。

Tp the time required for one-half of the atoms in a group of radioactive atoms to decay.

放射性药物radiopharmaceuticals是指药物的本身含有放射性核素，用于人体疾病的诊断与治疗的特殊药物。

Such superheavy elements are usually very radioactive and decay away almost instantly.

这种超重元素通常是具有非常强的放射性，并且几乎立即会发生衰变。

And sure enough, only a few months later the decay of the atom nucleus in the radioactive element cobalt 60 revealed that it did not follow the principles of mirror symmetry.

几个月以后，利用放射性元素Co60的核衰变所做的实验表明镜像对称性不成立。

In order to measure the mould level more quickly and accurately, the algorithms for real-time signal processing are developed to determine the pulse count rate, filter the signal and to compensate the decay of the radioactive source automatically.

为提高测量的统计精度和快速性，设计了信号实时处理算法测量信号脉冲计数率，进行信号滤波和放射源衰减自动补偿。

Radon is the crust of rock, soil radioelement arising from the decay of a radioactive inert gases, which are mainly the lungs and bronchial have on the human body radiation.

氡是地壳岩石、土壤中放射性元素衰变而产生的一种放射性惰性气体，它主要是对人体的肺和支气管产生辐射作用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。