英语释义

1. a heavy radioactive isotope of radon of mass number 220 that is formed as a decay product of thorium, decays by emission of an alpha particle, and has a half-life of less than a minute

片语

thoron concentration土浓度

density of thoron daughter子体浓度

Progeny of thoron钍射气子体

thoron II钍试剂

thoron chamberrn室

thoron level气土水平

thoron progeny子体

thoron daughters子体

英汉例句

• Apart from the lower uranium concentration in kidney and higher thoron concentration in lung, the related other values are roughly similar with those reported abroad.

  与国外相比，除了肾铀浓度明显偏低和肺钍浓度偏高外，其他数值基本相当。

• Methods By using the negative high voltage exhaled thoron progeny measurement system.

  方法采用负高压呼出气中子体测定装置。

• It was successfully used to automatically determine the concentrations of radon and thoron daughters in air.

  用它测定空气中气氡(气土)子体浓度获得良好结果。

• Using inductively coupled plasma mass spectrography, the contents of uranium, thoron and cesium in normal human body were detected with inter comparison made with reference materials.

  采用电感耦合等离子质谱法，检测了正常成年人体内铀、钍和铯的含量，分析方法用参考物质进行比对。

• Method By using high sensitive negative voltage exhaled thoron progeny collection and measurement system, the thorium lung burdens of each dust exposed miner was obtained.

  方法用高灵敏度负高压人呼出气中钍射气子体收集测量系统对每名被检矿工测定其肺内钍的沉积量。