英语词汇“radiolead”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

radiolead n.

Brit.

/ˈreɪdɪəʊlɛd/

U.S.

/ˈreɪdioʊˌlɛd/

a mixture of isotopes of lead, together with some bismuth and polonium, which constitutes the longer-lived product of the decay of radon; (also) lead-210 (radium D), the major radioactive component of this mixture, which decays by beta emission with a half-life of about 22 years.

ΘΚΠ

the world > matter > physics > atomic nucleus > radioactive isotope > specific isotopes > [noun] > radium > radon > mixture

radiolead1903

1903 London, Edinb., & Dublin Philos. Mag. 6th Ser. 5 585 The radio-lead described by Hoffmann and Strauss and by Giesel cannot be regarded as a new element until it is shown that it has permanent activity of a distinctive character.

1910 Nature 24 Feb. 492/1 The most natural source of polonium is radium D (radio-lead), which grows polonium and has a period of half-transformation of about twenty years.

1926 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity xiv. 118 Polonium..can be prepared..from solutions of the salts of radio-lead, which..contains an isotope of bismuth (RaE) and three isotopes of lead (RaD, RaG, Pb).

1941 Jrnl. Appl. Physics 12 440/2 The detection of radio-lead by its radioactivity is more than a million times more sensitive than the ordinary chemical and physical methods.

1989 Toxicol. & Appl. Pharmacol. 99 314 Low values of pH diminished the uptake and enhanced the release of radiolead by erythrocytes.

2007 Jrnl. Environmental Radioactivity 92 84 However, as the age of sediment increases, its radiolead content has an increasingly minor impact on inventory.

单词	radiolead
释义	> as lemmas radiolead radiolead n. Brit. /ˈreɪdɪəʊlɛd/ , U.S. /ˈreɪdioʊˌlɛd/ a mixture of isotopes of lead, together with some bismuth and polonium, which constitutes the longer-lived product of the decay of radon; (also) lead-210 (radium D), the major radioactive component of this mixture, which decays by beta emission with a half-life of about 22 years. ΘΚΠ the world > matter > physics > atomic nucleus > radioactive isotope > specific isotopes > [noun] > radium > radon > mixture radiolead1903 1903 London, Edinb., & Dublin Philos. Mag. 6th Ser. 5 585 The radio-lead described by Hoffmann and Strauss and by Giesel cannot be regarded as a new element until it is shown that it has permanent activity of a distinctive character. 1910 Nature 24 Feb. 492/1 The most natural source of polonium is radium D (radio-lead), which grows polonium and has a period of half-transformation of about twenty years. 1926 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity xiv. 118 Polonium..can be prepared..from solutions of the salts of radio-lead, which..contains an isotope of bismuth (RaE) and three isotopes of lead (RaD, RaG, Pb). 1941 Jrnl. Appl. Physics 12 440/2 The detection of radio-lead by its radioactivity is more than a million times more sensitive than the ordinary chemical and physical methods. 1989 Toxicol. & Appl. Pharmacol. 99 314 Low values of pH diminished the uptake and enhanced the release of radiolead by erythrocytes. 2007 Jrnl. Environmental Radioactivity 92 84 However, as the age of sediment increases, its radiolead content has an increasingly minor impact on inventory. extracted from radio-comb. form² < as lemmas
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> as lemmas