氡的同位素 的英文怎麼說

中文拼音 [dōngdetóngwèi]
氡的同位素 英文
emanation
  • : 名詞[化學] radon (86號元素, 符號 rn)
  • : 4次方是 The fourth power of 2 is direction
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : Ⅰ形容詞1 (本色; 白色) white 2 (顏色單純) plain; simple; quiet 3 (本來的; 原有的) native Ⅱ名...
  1. Any of several radioactive gases that are isotopes of radon and are products of radioactive decay

    射氣幾種氡的同位素放射性氣體,是放射性物質衰變產物
  2. Although thoron is one of isotopes of radon, and the characteristics of thoron and thoron progenies are similar to those of radon and radon progenies, because the half life of thoron is shorter ( 55. 6s ), the concentrations of thoron and thoron daughters in environment are lower, people usually think that the effective dose from thoron and its progenies can be eliminated, and the measurements of thoron progenies concentrations are difficulty, a little research work on the dose evaluation of thoron and thoron progenies in environment has been done

    雖然(氣土)是氡的同位素,它及其子體特性也與及其子體相似,但由於(氣土)半衰期短( 55 6s ) ,環境中(氣土)濃度較低, (氣土)及其子體濃度測量較難,人們一般認為(氣土)及其子體所致劑量可以忽略,所以對環境中(氣土)及其子體劑量評價研究很少。
  3. A radioactive, inert, gaseous isotope of radon, with a half - life of3. 92 seconds

    錒射氣一種放射性,惰性和氣態,其半衰期為3 。 92秒
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