a half life的意思

a half life中文翻譯：

半衰期

相似詞語短語

half life───n.半衰期；半存留期；半排出期；n.（放射性）半衰期

a half───一半；二分之一

conscript half life───義務兵半衰期

half life calculator───半衰期計算器

uranium half-life───鈾半衰期

half life 2───半衰期2

elimination half life───[醫]消除半衰期

tartrate half life───酒石酸半衰期

half a dozen───adj.半打，六個

雙語使用場景

Business opportunities have a half-life, just like uranium.───商業機會有半衰期，就像鈾一樣。

The city's challenge, chiefly, is to dispose of cesium-137, a radioactive isotope with a half-life of 30 years.───這座城市面臨的最大問題就是處理銫—137，這是一種半衰期為30年的放射性同位素。

In lots of cases, it's useful to define what's called a half life. It's just useful.───很多情況下有必要，定義一個稱為半衰期的量，這個量很有用。

When Hazen's team put oil samples in a laboratory setup designed to mimic Gulf conditions, it had a half-life of between one and six days.───當黒曾團隊將油樣放入模擬的海灣背景下的實驗室，油樣有一個在一天和六天之間的半衰期。

Iodine-131 has a half-life of about a week, meaning that levels in water could fall quickly if new doses aren't introduced.───碘-131的半衰期在一個星期左右，所以如果沒有新的劑量進入，水中的放射性可能就會很快下降。

Iodine-131 has a half-life of roughly a week, which means levels could fade if new radioactive material isn't added.───碘-131的半衰期約為一周，也就是說如果沒有新的放射性物質加入，輻射水平有望降低。

Cesium-134 is considered somewhat less of a long-term problem because it has a half-life of two years.───銫134被認為影響沒有那么長久，因為它的半衰期是兩年。

Over the long term, the big threat to human health is cesium-137, which has a half-life of 30 years.───長期以來，對人體健康的一大威脅就是銫137，它的半衰期為三十年。

Cesium-137, with a half-life of 30 years, is another dangerous substance emitted in a full-scale nuclear meltdown.───核反應堆完全熔解后，會釋放出另一種危險物質銫-137。銫-137的半衰期為30年。

英語使用場景

Confucius has a half life time, are engaged in education work.