铯

The distribution coefficients of rubidium and caesium between Cation-42, a phenolic-sulfonated cation exchange resin manufactured in Shanghai, and nitric acid as well as nitric acid-methanol or butanol mixtures have been determined by the equilibrium method.

本文用平衡法测定铷、铯在稀硝酸或稀硝酸-甲醇与华东化工学院阳-42号树脂间的分配系数，比较用硝酸及硝酸-醇作淋洗液分离铷、铯的效果，并确定0.47M硝酸是较好的淋洗液。

Separation of 2 mg Rb from the same amount of Cs has taken place successfully in 0.2NHCl with the help of an exchange column of 0.6cm diameter and 15.5cm length by using 0.25N NH4NO3-0.2NHCl and 3.78N NH4NO3 as an eluant for Rubidium and Caesium under the condition of an exhausting flow of 0.17ml/min.

在0.2NHCi中，使用直径为0.6cm，高15.5cm的交换柱，0.17毫升/分的流速和0.25N NH_4NO_3-0.2NHCl、3.78N NH_4NO_3作为铷和铯的洗脱剂，成功地分离了各为2毫克的铷和铯。

You see, because of the low melting point of cesium, if you put it on you hand, it will melt.

你想，把铯放在手上，因为铯的熔点低，那么它就会熔化。

The process and conditions of cesium atomic fountain were introduced with detailed discussion of the influence of the optical component on fountain optical system.

介绍了实现铯原子喷泉的过程及条件，并详细讨论了光路中各种光学元件对铯原子喷泉光学系统性能的影响。

The work in this dissertation provides a systematic approach for evaluating the accuracy of the laser-cooled cesium fountain frequency and a basis for the design of the standard and the improvement of the accuracy.

本文的工作为正确评定激光冷却与囚禁铯原子喷泉频率基准的准确度提供了系统的理论与方法，为铯原子喷泉频率基准的设计和进一步提高其准确度提供了依据。

The formation of the new type of Cs ore deposit--Cs-bearing geyserite deposit, which only be found in the Tibet plateau, is also an interesting hot point attracting many focuses.

对于高原广泛发育一种新类型的铯矿床——硅华铯矿，目前只在青藏高原发现，它的形成原因也是一个引人注目的研究焦点。

Monododecylphosphate was prepared by esterification of lauryl alcohol with phosphoric acid(mass fraction 85%) on cesium phosphotungstate catalyst.

以磷钨酸铯盐为催化剂，由月桂醇和85%的磷酸直接酯化合成单十二烷基磷酸酯，考察了带水剂种类、反应时间、磷钨酸铯盐催化剂中的铯取代数、催化剂用量和月桂醇与磷酸摩尔比等条件对磷酸转化率及单十二烷基磷酸酯选择性的影响。

Results showed that shoot biomass of H. annuus was significantly higher than that of R. acetosa and R. hastatus; among three plant species, 134Cs specific activity in shoots was the highest in H. annuus after 50 d-treatment, however after 70 d-treatment, that in R. acetosa was the highest. Bioaccumulation ratio reached 1.5, 1.4 and 1.3 in R. acetosa, R. hastatus and H. annuus after 70 d-treatment, and the former two plants kept with trend of continuously increasing. Three plants were resistant to 134Cs contaminated soil and capable of translocating 134Cs from soil to plants. Among them, H. annuus removed greatest 134Cs amount in the aboveground part during the experiment period, and R. acetosa, R.

结果表明，向日葵地上部生物量显著高于酸模和戟叶酸模；处理50d时，向日葵地上部134Cs比活度在3种植物中达到最高，而在处理70d时，酸模地上部134Cs的比活度达到最高；处理70d时，酸模、戟叶酸模和向日葵对134Cs的富集系数均大于1，分别达到1.5、1.4和1.3，且前2种植物继续保持快速上升的趋势。3种植物对铯污染土壤具有一定的忍耐性，并具有较强的从土壤向植物转移铯的能力；在本实验期内（70d）向日葵对土壤中放射性铯的剔除能力最强，而酸模和戟叶酸模则具有更强的铯转移能力。

Some primary beryl crystals are found in spodumene in zones Ⅲ and Ⅳ, and are enriched in Fe and Mg. The late secondary beryls with low contents of Cs2O are attributed to crystallization of pullucite and nanpingite. There is possibly a re-equilibrium between the late hydrothermal fluids and the Cs-rich beryl.

晚期绿柱石的Cs2O含量较低，可能是由于艳沸石和南平石等铯矿物的结晶，导致晚期熔体－热液中相对贫铯，而热液流体与富铯绿柱石之间可能存在艳的化学再平衡。

The laser optically pumped cesium magnetometer is a magnetic measurement instrument that is used to measure the absolute total intensity magnetic field, it is based on that the energy levels of cesium atoms in a magnetic field produces Zeeman effect and makes use of the principle that laser pumping and the RF magnetic field produce magneto-optical double resonance to make.

激光铯光泵磁力仪是一种用来测量磁场总强度的绝对磁测仪器，它是以铯原子的能级在磁场中产生塞曼效应为基础，利用激光泵浦和射频磁场产生光磁双共振的原理而制成的，激光泵浦铯原子是磁力仪结构的核心部分。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。