cesium造句
1 It is the main cesium chloride compound.
2 Otherwise cesium tetrachloroiodide may be formed.
3 The cesium atomic fountain used laser cooling and trapping is a new generation primary frequency standard.
4 Theoretical design of the dipole cesium beam tube is discussed.
5 Cesium chloride is an example of a bodycentered cubic crystal.
6 Cesium carbonate catalyzed O - alkylation of phenol to synthesize alkly aryl ethers.
7 They are calibrated to Cesium 137, but also serve as excellent indicators for many other sources of ionizing radiation.
8 A method for the determination of cesium in silver catalyst by FAAS is described.
9 Optical constants and dielectric constants of normal cesium oxide thin films are related to wavelength of incident light and cesium impurity contained.
10 Both gadolinium oxysulfide and thallium doped cesium iodide, CsI(Tl), produce their peak light output at this frequency.
11 Very high concentrations of cesium 137 were found near the village of Iitate, 25 miles northwest of the plant.
12 At present, the cesium source used for manufacture of photocathode belongs to a neutral source which shows some advantages.
13 During irradiation, food is exposed to gamma rays from sources such as cobalt 60 or cesium 137.
14 The definition of a second has since officially been the time it takes a cesium atom to make 9,192,631,770 vibrations.
15 The most easy to produce light of current metal - cesium.
16 To meet the needs of high electron current density photocathodes, the processes for preparing cesium antimonide have been studied.
17 Using inductively coupled plasma mass spectrography, the contents of uranium, thoron and cesium in normal human body were detected with inter comparison made with reference materials.
18 The metal sheet is coated with a certain special material, such as cesium.
19 It has been researched on the reaction of trimethylsilylacetylene with diphenyl diselenide catalyzed by cesium hydroxide.
20 After repeated testing, to confirm the three counties of beef is not excessive radioactive cesium, so decided to lift the ban on sales orders.
21 This paper introduces the evaluation of measurement uncertainty of cesium atomic beam frequency standard, and gives its calculation process and expression method.
22 Any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium).
23 Of concern in the current situation is ionizing radiation, which is produced by spontaneously decaying heavy isotopes, such as iodine 131 and cesium 137.
24 Indicated the good result of the long-term operation of the optically pumped cesium beam frequency standard in China.
25 And an ytterbium the potential to be even more accurate and stable than the cesium chronometer.
26 In the surface analysis and the manufacture of photocathode the cesium ion source shows some advantages as compared with the neutral cesium source.
27 At present nuclear power stations around the detected radioactive material include iodine 131 and cesium 137.
28 Another example of the cubic lattice system is the body - centered cubic crystal of cesium chloride.
29 Use: Used as an analytical reagent, to determine alkaloid and cesium.
30 In the Fukushima situation, the radioactive isotopes detected, iodine 131 and cesium 137, emit both gamma and beta radiation.
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