a half life发音

意思翻译

半衰期

相似词语短语

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───义务兵半衰期

half life calculator───半衰期计算器

uranium half-life───铀半衰期

half life 2───半衰期2

elimination half life───[医]消除半衰期

tartrate half life───酒石酸半衰期

half a dozen───adj.半打，六个

双语使用场景

Business opportunities have a half-life, just like uranium.───商业机会有半衰期，就像铀一样。

The city's challenge, chiefly, is to dispose of cesium-137, a radioactive isotope with a half-life of 30 years.───这座城市面临的最大问题就是处理铯—137，这是一种半衰期为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.───很多情况下有必要，定义一个称为半衰期的量，这个量很有用。

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.───当黒曾团队将油样放入模拟的海湾背景下的实验室，油样有一个在一天和六天之间的半衰期。

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的半衰期在一个星期左右，所以如果没有新的剂量进入，水中的放射性可能就会很快下降。

Iodine-131 has a half-life of roughly a week, which means levels could fade if new radioactive material isn't added.───碘-131的半衰期约为一周，也就是说如果没有新的放射性物质加入，辐射水平有望降低。

Cesium-134 is considered somewhat less of a long-term problem because it has a half-life of two years.───铯134被认为影响没有那么长久，因为它的半衰期是两年。

Over the long term, the big threat to human health is cesium-137, which has a half-life of 30 years.───长期以来，对人体健康的一大威胁就是铯137，它的半衰期为三十年。

Cesium-137, with a half-life of 30 years, is another dangerous substance emitted in a full-scale nuclear meltdown.───核反应堆完全熔解后，会释放出另一种危险物质铯-137。铯-137的半衰期为30年。

英语使用场景

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