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半衰期

na.【物】half-life period; half-time
网络half life time; half period; half value period

半衰期

英-汉网络释义

半衰期

na.

1.【物】half-life period; half-time; half-value period; radioactive half-life

half-life

半字的解释---在线新华字典 ... 半数〖 halfof;partof;restof〗 半衰期〖 half-life;half-lifeperiod〗半死不活；半死半活〖 dying〗 ...

half-life period

有“半”字的成语_百度知道 ... 半数[ half of;part of;rest of] 半衰期[ half-life;half-life period] 半死不活；半死半活[ dying] ...

half life time

专业词汇在线翻译、医学专业在线词典、双语例句 ... 半数致死量 half lehtal dose 半衰期 half life time 偏瘫 half pack ...

half-time

专业词汇在线翻译、医学专业在线词典、双语例句 ... 半厚值 half-thickness value 半衰期 half-time 半排空时间 half-time emtying ...

half period

石油词汇英语翻译(GH)--石油百科 ... half normal bend 弯管 half period 半衰期 half poop 短艉楼 ...

half value period

物理专业英语词汇(H)_行业词汇_免费英语网 ... half value layer 半值层 half value period 半衰期 half wave dipole 半波偶极子 ...

Citing Half-Life

施引半衰期(Citing Half-Life)指引文数达到当前期刊发表的论文中的参考文献数的50%所需要的年数. 识别期刊的主要依据有:期 …

half-lives

演重要角色的，都有较短的半衰期（Half-lives），通常是几分钟或几小时的长短。快速转换率代表的意义，表示可能可以经由 …

例句：

But the half-life of market domination seems to be dwindling.

但是似乎这些公司的垄断半衰期一直在缩短。

It accumulates in the cooling water of nuclear reactors and is often vented in small amounts to the environment . Its half-life is 12 years.

氚聚集在核反应堆的冷却水中，通常以微量排放到环境中，其半衰期为 12 年。

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。

In particular, the half-life of ethyl mercury is short (less than 1 week ) compared with that of methyl mercury (1 . 5 Months ).

特别是乙基汞的半衰期较短（少于 1 周），而甲基汞的半衰期为 1.5个月。

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。

Scientists estimate the half-life of CO2 might be close to a hundred years.

科学家估计，二氧化碳的半衰期可能接近于 100 年。

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。

Half -life is the time required for half the quantity of the protein to be broken down and eliminated from the joint space .

半衰期指一半蛋白从关节腔中分解和消失用的时间。

Such a short half-life to facilitate the treatment of the operation , but also easy to play a role in radioactive antibody .

如此短的半衰期便于治疗操作，也便于放射性抗体发挥作用。

Their half-life in the body is estimated to be seven to eleven years .

它们在体内的半衰期估计为 7至11 年。

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。

Also , the threat should be short-lived because half of any given amount of iodine-131 decays away weekly .

而且，这种危险只是短期的，因为碘 -131 的半衰期只有一周。

The compositions and methods are useful for modulating the plasma circulation half-life of an active agent .

这些组合物和方法可有效调节活性药物的血浆循环半衰期。

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。

The danger of nitrogen-16 is an issue only for plant workers and operators because its half-life is only seven seconds .

氮 -16 只对电厂的工人和操作人员存在危险，因为它的半衰期只有七秒中。

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。

Besides, the also has such advantages as long half-life , and little influence of environment to the immobilized system .

同时与其它酶固定化方法相比较，具有半衰期长，固定化体系受外界环境影响小等特点。

Currently, PEGylation is commonly used as an effective method to prolong its half-life in serum.

聚乙二醇修饰是目前有效地延长其半衰期的方法。

Half -life (elimination ) is the time required for the plasma drug concentration or the amount of drug in the body to decrease by 50%.

半衰期（消除）是指血浆药物浓度或体内药物数量降低 50%时所需的时间。

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。

has a rapid onset and short duration of action; and is easily administered orally , intravenously , rectally, or intramuscularly .

它安全有效，半衰期短易于代谢，口服、静注、经直肠给药或肌注都很方便。

taking stable iodine as a pill blocks the uptake of the hazardous radioisotope, which has a half-life of 8 days .

服用稳定的碘元素会阻止危险碘同位素的摄入，碘同位素的半衰期仅为八天。

Half -life is the time it takes one-half of the atoms of a radioactive material to disintegrate .

半衰期是指放射性物质的原子有半数发生衰变时所需要的时间。

As a result , a polymer with a appropriate Mw as well as a neutral charge can possess a long half-life in plasma .

所以分子量大于 3万，且为中性电荷的聚合物在血浆内半衰期长。

But the half-life of these fake packages has been getting shorter .

但是，这些 “伪 ”方案的半衰期变得越来越短。

半衰期

半衰期