查询词典 cesium

" Alkali metal:Any of the six chemical elements in the leftmost group of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium)."

碱金属：碱金属是元素周期表中的Ia族元素，按原子序数增加的顺序排列为︰锂、钠、钾、铷、铯和。

There are salt, boron, potassium, magnesium, lithium, rubidium, bromine, iodine, strontium, cesium, gypsum, Glauber's salt, soda and so on, up to more than 600 million tons of salt.

主要有盐、硼、钾、镁、锂、铷、溴、碘、锶、铯、石膏、芒硝、天然碱等，食盐达600多亿吨。

A primary frequency standard in which a specified hyperfine transition of cesium-133 atoms is used to control the output frequency.

基本频率标准，采用了一种特殊的超精细铯-133原子传输来控制输出频率。

Analysis of K and Na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove SiO2 ,adjusting the ratio of K and Na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference.

摘要本方法用于测定霞石中的钾、钠，主要通过在溶样时加入氢氟酸除去二氧化矽，调整溶液中钾、钠的含量，消除互相之间的干扰，加入氯化铯消除电离因素的干扰，提高了分析结果的准确性和重现性，使测定结果更接近化学分析值。

Analysis f K and Na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove SiO2, adjusting the ratio of K and Na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference.

摘要本方法用于测定霞石中的钾、钠，主要通过在溶样时加入氢氟酸除去二氧化矽，调整溶液中钾、钠的含量，消除互相之间的干扰，加入氯化铯消除电离因素的干扰，提高了分析结果的准确性和重现性，使测定结果更接近化学分析值。

The cesium now maintains accuracy with a degree of error to about'one-millionth of a second per year'.

可见随着技术的发展，原子钟已经可以达到一年误差大约一百万分之一秒。

In the review, the basic knowledge of the aqueous two-phase systems, rubidium, cesium and their compounds were introduced firstly.

综述部分简要介绍了铷、铯及其化合物的存在、分离分析及应用等相关基础知识，以及双水相体系的发展和应用。

Heavy and rare alkali-metals rubidium and cesium, possessing extremely high chemical properties and nearly perfect physical merits...

重稀碱金属铷和铯具有极高的化学活性和优异的光、电等物理特性，近年来在高科技领域里的应用日益拓展。

Heavy and rare alkali-metals rubidium and cesium, possessing extremely high chemical properties and nearly perfect physical merits of optics and electricity, have been finding more and more applications in the field of high technology in the last decades.

重稀碱金属铷和铯具有极高的化学活性和优异的光、电等物理特性，近年来在高科技领域里的应用日益拓展。

The laboratory cesium clock is used to provide the basic reference of the second, while hydrogen clocks and rubidium c...

实验室铯束标准提供了时间单位的校正，即秒长，氢原子钟和守时铷标准则保证了时间尺度的连续性。

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。