| 单词 | caesium |
| 释义 | caesium noun[U] UK(UScesium)uk/ˈsiː.zi.əm/us/ˈsiː.zi.əm/(symbolCs)achemicalelementthat is asoft, silver-whitealkalinemetal. Caesiumreactsstronglywith otherchemicalsand is used inphotocells. 铯（金属元素，银白色，质软，化学性质活泼，用于制光电池）Chemical elements
Examplesofcaesiumcaesium It is found that the addition of as little as 1% ofcaesiumprofoundly alters the properties of the plasma. From theCambridge English Corpus Equations (3a)-(3f) express the law of mass action applied to the two ionization stages of noble gases andcaesium. From theCambridge English Corpus Over the next 10 days, an area of about 1000# km, containing many villages and farms, was heavily contaminated with plutonium,caesiumand radioactive iodine. From theCambridge English Corpus Those formed in mixtures of noble gases andcaesium, in particular, are also of importance in different laboratory situations; for example, plasma etching and ion-beam etching. From theCambridge English Corpus The observed plasma formed from atomic hydrogen generated at a tungsten filament that heated a titanium dissociator and one of potassium, rubidium,caesiumand their carbonates and nitrates. From theCambridge English Corpus Again, this is primarily ascribable to the variations in ne due to the presence ofcaesium, although the inclusion of electron-atom collisions provides a non-negligible contribution as well. From theCambridge English Corpus Three hundred and six samples of milk were analysed for bothcaesium134 andcaesium137. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 They are a means of ensuring thatcaesiumdoes not come on to the market from young unfinished lambs. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 Low concentrations ofcaesiumradionuclides are detectable in people generally as a result of atmospheric fallout and releases from nuclear installations. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 Radionuclides such as the isotopes of iodine andcaesiumwould not normally be present. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 The map referred to was a preliminary contour map of thecaesiumdeposition. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 A representative selection of public water sources has been monitored for several years for radioactive strontium andcaesium. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 Caesiumis a mobile element which moves with the water and is therefore a good indicator of current flows. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 But—and this is important—the government scientists are conducting laboratory experiments on the uptake ofcaesiumfrom different types of soil. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 The take-up ofcaesiumoccurs over a period. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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