solid expansion thermometer

catalytic - kinetic spectrophotometric deterimnation of trace silver with a system of silver - potassium persulfate -thoron

银-过硫酸钾-钍试剂体系催化光度法测定痕量银

survey of radon and thoron concentration in the inhabitants'living rooms of a village in the south area of yunnan

云南南部地区某村居民室内氡、钍射气浓度调查

Survey of radon, thoron and its decay products in two coal mines in Fangshan area of Beijing

北京房山区两座煤矿~（222）Rn、~（220）Rn及其子体的测量

kinetic spectrophotometric determination of trace ruthe-nium with thoron

钍试剂催化动力学光度法测定痕量钌

the properties and measurements of thoron in buildings

建筑物内钍射气的性质和测量

study on the activated charcoal monitor for thoron in air

空气中钍射气活性炭收集器的研究

concentrations of indoor radon and thoron in cave-dwellings with discussions on risk estimation of lung cancer

窑洞内氡、钍射气水平及致肺癌的危险评价

A general formula of ballon method for the measurement of radon and thoron

气球法测定氡（气土）浓度的一般公式

The daughter nuclides of radon and thoron tend to become attached.

氡和钍射气的子体易被气溶胶吸附.

then he came, with his rings and his promises, i abandoned all i had to follow them, thoron.

然后他来了，带著他的戒指和他的承诺，我放弃了所有的一切追随他：索伦。

measurements of thoron concentration and dose assessment

浓度的测量及剂量学评价

improvement of sensitivity of thoron monitoring with electret

利用驻极体提高测气土的灵敏度