| 释义 |
caesiumcae‧si‧um British English, cesium American English /ˈsiːziəm/ noun [uncountable]   caesiumOrigin: 1800-1900 Latin caesius ‘bluish grey’ - It had a caesium 137 concentration of only 4 becquerels per kilogram.
- The caesium chloride lattice is thus said to have 8:8 coordination.
- The caesium chloride structure, for example, consists of a cubic structure of cations and a cubic structure of anions.
- The best caesium clocks achieve a fractional accuracy and stability of between 10 -13; and 10 -14;.
- The study stresses that the levels of caesium observed do not pose any risk to health.
► Elementsaluminium, nounargon, nounarsenic, nounbarium, nounbase metal, nounbismuth, nouncadmium, nouncaesium, nouncalcium, nouncarbon, nounchlorine, nounchromium, nouncobalt, nouncopper, nounferrous, adjectivegold, noungold, adjectivegolden, adjectivehalogen, nounhydro-, prefixhydrogen, nouniodine, nouniridium, nouniron, nounisotope, nounkrypton, nounlead, nounlithium, nounmagnesium, nounmanganese, nounmercury, nounmolybdenum, nounnickel, nounnitrogen, nounoxygen, nounphosphorus, nounplatinum, nounplutonium, nounpotassium, nounprecious metal, nounradium, nounradon, nounselenium, nounsilicon, nounsilver, nounsilver, adjectivesodium, nounstrontium, nountin, nountin, adjectivetitanium, nountrace element, nountungsten, nounuranium, nounxenon, nounzinc, noun a soft silver-white metal that is used in photoelectric cells. It is a chemical element: symbol Cs |