fàngshèxìngshuāibiànguīlǜ law of radioactive decay
fàngshèxìnghésùbànshuāiqī half-time of radioactive nuclide
zàifàngshèxìngshuāibiàndeguòchéngzhōngfàngchū β lìzǐdefúshè。 radiation of beta particles during radioactive decay.
shuāibiànyóuyúfàngshèxìngshuāibiàn 'érjiětǐhuòsuōxiǎo To disintegrate or diminish by radioactive decay.
zàifàngshèxìngshuāibiàndeguòchéngzhōngfàngchū α lìzǐdefúshè。 the radiation of alpha particles during radioactive decay.
shèqìjǐzhǒngdōngdetóngwèisùdefàngshèxìngqìtǐ, shìfàngshèxìngwùzhìshuāibiàndechǎnwù Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
dìzhìniándàicèdìngtōngguòfàngshèxìngtóngwèisùshuāibiànláicèdìngdìzhìniándài Measurement of geologic time, as through isotopic radioactive decay.
bànjiǎnqībèihuódeyòujītǐshèrùdefàngshèxìngyuánsùjīngguòshēngwùshuāijiǎnjífàngshèxìngshuāibiànguòchéngzōnghé, qíjìliàngjiǎnzhìyībànsuǒxūyàodeshíjiān The time required for the radioactivity of material taken in by a living organism to be reduced to half its initial value by a combination of biological elimination processes and radioactive decay.
āshèqìdōngdeyīzhǒngfàngshèxìngde, duòxìngdehéqìtàidetóngwèisù, qíbànshuāiqīwéi 3。 92 miǎo A radioactive, inert, gaseous isotope of radon, with a half-life of3.92 seconds.
yóuyúshòujiàngyǔ、 zhēngfā、 shēngwùhuódòngyǐjífàngshèxìngshuāibiànděngyīnsùdeyǐngxiǎng, bùtóngdehǎiqūhǎishuǐyándùyěbùtóng。 Variations from place to place are due to factors such as rainfall, evaporation, biological activity and radioactive decay.
gèngbiéwàngliǎonàxiē 'ángguìdekàngshuāilǎohuàzhuāngpǐnhédàshāngchǎngjíměiróngdiànlǐdepífūbǎoyǎng。 And let us not forget all the fancy anti? aging cosmetic products and skin treatments in department stores and beauty salons.
gōngzhòngjīhūměitiāndōubèi“ kàngshuāilǎo”shípǐn、 xīnxíngwéishēngsùyǐjíqítājùyòushénqígōngxiàodeshíwùguǎnggàosuǒbāowéi。 Almost daily the public is besieged by claims for "no-aging" diets, new vitamins and other wonder foods.
zàiyīzhǒngbǎniánqīngděngtóngwéiměidewénhuàzhōng, dàduōshùměiguórényīzhídōuzàiyǔshuāilǎozuòdǒuzhēng。 In a culture that equates youth with beauty,a majority of Americans is constantly at war with aging.
tuìhuàyīnlǎohuà 'érchūxiàndezhèngchángshēntǐgōngnéngdechíxùshuāituìhuòtuìhuà A progressive decline or degeneration of normal physiological functioning occurring as a result of the aging process.
qùniándōngtiān, yǎfāngtuīchūliǎokàngpífūshuāilǎodehùfūpǐn retroactive, bìngyījǔhuòdéjùdàchénggōng。 Last winter, Avon launched Retroactive, an anti-aging skin cream that has been a runaway hit.
gōngxiào: tōngguòzǔzhǐzìyóujīhuódòngqǐkàngshuāilǎodezuòyòng。 What they can do: provide anti-aging protection by guarding against free radicals.
gēnjùjīyīnxuéjiādeyánjiū, tākěnéngyìyúzǎoshuāijígǎnrǎnjíbìng。 She may be susceptible to premature aging and disease, according to geneticists.
zuòyòng : pútáohánduōfēnjíjùyòukàngshuāilǎoxiàoguǒdetiānránkàngyǎnghuàjì。 How it works: Grapes contain polyphenols, natural antioxidants with anti-aging benefits.
lǎoshuāizǔzhìdezhèngchángyìnghuà The normal hardening of aging tissue.
xiànshòuhuòwù; xiànzàizhèngzàishuāilǎoxiàqùdedúcáizhě Goods now on sale; the now aging dictator.
rúguǒměiguóxiànrùshuāituì, tèbiéshìgǔshìxiàdiēyǐnfādeshuāituì, nàmeměiguóqióngrénhézhōngchǎnjiēcéngzhěkěnéngtūránzhījiānfāxiànzìjǐchéngliǎoshòuhàidedàduōshù。 If the country fell into recession-especially a recession sparked by a falling stock market-poor and middle-class Americans might suddenly see themselves as an aggrieved majority.
tādejiànkāngxùnsùshuāituì。 His health is failing rapidly.
kèlǐsītuōfú · bùpítèjiàoshòushìyīwèiyánjiūshuāilǎowèntídezhuānjiā。 tārènwéigāodǎngùchúnhégāoxuèhóngdànbáihuìshǐnánrénshuāilǎo, dīdǎnhóngsùhuìràngnǚrénkàngshuāilǎodenénglìjiàngdī。 Professor Christopher Bulpitt, an expert in ageing, said that high levels of cholesterol and the red blood pigment haemoglobin can age men, while low levels of the liver chemical bilirubin may reduce women's ability to retain their youthfulness.
liúxíngbìngxuéyánjiūdefùzérénhóngzhìxiàfāngshuō:“ pútáojiǔhémǐjiǔzhīsuǒyǐnénggòutígāoréndezhìshāng, kěnéngshìyóuyútāmenhányòuxiàngduōfēnnàyàngdewùzhì, jùxìnzhèlèiwùzhìhuìyánhuǎnréndeshuāilǎoguòchéng。” " The benefits of wine and sake [rice wine] in raising IQ could be due to substances they contain, such as polyphenol, which are believed to slow the ageing process," Hiroshi Shimokata, head of epidemiology research, said.
dàwèi · wēikěnhǎizébóshìzàijiānádàwēngēhuáyánjiūshuāilǎowèntíyǐyòu 10 niánshíjiān, tāfāxiànyībānréndeshēngwùxuéniánlíngbǐ 'ànshíjiānjìdeshíjìniánlíngyàolǎo 15 niánshènzhìgèngduō。 Dr David Wikenheiser has been studying ageing in Vancouver, Canada, for the past 10 years and has found the average person is 15 or more years older biologically than chronologically.
zhèzhǒngsuízheshíjiānliúshìdehuólìshuāituìjiùjiàozuòshuāilǎo。 This decline in vigour with the passing of time is called ageing.
shuāilǎowúqíngdìláilín, jiēzhǒng 'érzhìdeshìgèzhǒnggèyàngdeténgtòngjíbìng。 The aches and pains begin as the ageing process inexorably sets in.
dǎngùchúnjiāshàngxīyānhérìshàikědǎozhìshuāilǎo。 Cholesterol joins smoking and sunbathing as an ageing agent.