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- tetraallyl thorium 四烯丙基钍
- Marie found another called thorium. 玛丽发现了另一种物质，叫钍。
- A radioactive isotope of thorium with mass number228. 射钍钍的放射性同位，质量数为
- This is clearly confirmed by the detection of thorium. 这显然证实了检测钍.
- They recognized that in a thorium province Pb208 would present complications. 他们承认，含钍区内的Pb208会产生干扰。
- Followed by the slow decomposition of uranium to another element thorium. 铀元素随后缓慢分解为另一种元素钍。
- We are actually trying to measure this profile and to detect thorium. 我们正试图测量这个图表，以侦测钍的存在。
- Chemical compounds and mixtures containing uranium and thorium are active in direct proportion to the amount of these metals contained in them. 含铀和钍的化合物和混合物活跃的程度与这些化合物和混合物中这两种金属的含量直接相关。
- I measured the activity of a number of minerals; all of then~ that appear to be radioactive always contain uranium or thorium. 我测量了一些矿物的活性，所有显示放射性的物质均含有铀和针。
- A few elements, among them uranium and thorium, spontaneously disintegrate into lighter elements by chances. 少数元素，其中有铀和钍，通过它们核的变化自然蜕变成较轻的元素。
- Either of two decay products of thorium,mesothorium I,an isotope of radium,or mesothorium II,an isotope of actinium. 新钍钍的两种放射性生成物之一，即新钍1号，它是镭的同位素，或新钍2号，它是锕的同位素
- There are some radioactive nuclides such as uranium, radium, thorium and polonium in pit effluent of uranium mine. 铀矿山坑道污水含有铀、镭、钍、钋等放射性核素,外排前必须加以处理。
- Right now, the quest require you to bring 4x[Delicate Arcanite Converter] and 2x[Thorium Widget]. 就目前来说,任务需要你带给他4个[精密奥金转换器]以及2个[瑟银零件]。
- Thorium Shells are now green at 300 Engineering (was orange at 300 eng. before this patch). 瑟银弹现在是绿色的;在300工程看;是绿色的(以前是橙色的.
- A reddish-brown mineral containing rare earth metals; an important source of thorium and cerium. 一种红褐色矿物，含稀土金属，是钍和铈的主要来源。
- This is mainly natural stones, radium, thorium, potassium, the three radioelement in the decay of radioactive material. 主要来源于人造板材，会刺激人们的呼吸系统，造成咽喉炎、哮喘等疾病，被世界卫生组织列为可疑致癌物。
- The colour reaction of the reagents with bismuth, rare earth and thorium have also been studied. 研究了共与铋、稀土、钍的显色反应性能，并对其进行了提纯鉴定。
- In layers deep containing uranium, radium, thorium in the soil, rocks, one can find high concentrations of radon. 在地层深处含有铀、镭、钍的土壤、岩石中人们可以发现高浓度的氡。
- This review covers the new development of spectrophotometric determination of thorium since the 1980's. 本文对80年代以来光度分析法测定微量、痕量钍作了综合报道。
- And the result is given in field.It can be used to measure radon in air, water and soil and thorium emanation (220Rn). 可用于室内测氡、壤中测氡、水溶液测氡以及钍射气测量等领域。
