cesium

• n. 铯（55号元素，符号Cs）

1. a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal

Otherwise cesium tetrachloroiodide may be formed.

不然可能形成四氯碘化铯.

辞典例句

The metal sheet is coated with a certain special material, such as cesium.

金属片上涂有象铯那样的某种特殊材料.

辞典例句

Use: Used as an analytical reagent, to determine alkaloid and cesium.

用途:分 析试剂, 生物碱和铯盐的测定.

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The most easy to produce light of current metal - cesium.

光照下最易产生电流的金属 —— 铯.

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Cesium carbonate catalyzed O - alkylation of phenol to synthesize alkly aryl ethers.

摘要研究了碳酸铯催化酚与卤代烃反应制备烷基芳醚.

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It is the main cesium chloride compound.

氯化铯是它的主要化合物.

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A method for the determination of cesium in silver catalyst by FAAS is described.

利用火焰原子吸收光谱法测定银催化剂中的铯.

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And an ytterbium the potential to be even more accurate and stable than the cesium chronometer.

镱原子钟甚至可能比铯原子钟更加精确和稳定.

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At a microkelvin , cesium has nearly the maximum possible cross section, he continued.

在绝对温度10-6度下, 铯原子的截面积几乎达到可能的最大值.

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With nitrogen cesium, but under high temperature, and reaction generated fairly stable hydride.

铯不与氮反应, 但在高温下能与氢反应,生成相当稳定的氢化物.

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Cesium chloride was added as ionization buffer to eliminate the ionization interference of sodium and potassium.

加入氯化铯作为抑制剂,消除了钠、钾的电离干扰.

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The cesium atomic fountain used laser cooling and trapping is a new generation primary frequency standard.

应用激光冷却与囚禁的铯原子喷泉是新一代的频率基准.

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Cesium and organic alkali will occur with other similar reactions, but it's quite lively.

铯和有机物也会发生同其他碱金属相类似的反应, 但它比较活泼.

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Decontamination factor for cesium is more than 106. Recovery ratio for rubidium is more than 80 %.

建立了简便、高效的铷、铯放化分离流程,对铯的去污系数大于106, 铷的回收率大于80%.

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词源同cerulean, 天蓝色的。因该金属元素呈天蓝色而命名。字母r,s音变。

1. Cesium chloride is an example of a bodycentered cubic crystal.

氯化铯是体心立方晶体的一个例子.

来自辞典例句

2. Otherwise cesium tetrachloroiodide may be formed.

不然可能形成四氯碘化铯.

来自辞典例句

3. This is the basis for the well - known cesium clock, presently the standard of frequency and time.

这就是众所周知的铯原子钟的基础, 它是目前的频率和时间基准.

来自辞典例句

4. The metal sheet is coated with a certain special material, such as cesium.

金属片上涂有象铯那样的某种特殊材料.

来自辞典例句

5. Another example of the cubic lattice system is the body - centered cubic crystal of cesium chloride.

立方晶系的另一个例子是氯化铯的体心立方晶体.

来自辞典例句

cesium (n.)

also caesium, rare alkaline metal, 1861, coined by Bunsen and Kirchhoff in 1860 in Modern Latin (caesium), from Latin caesius "blue-gray" (especially of eyes), in reference to the two prominent blue lines in its spectrum, by which it was first identified.