half-life
英
美
- n. 半衰期
详细释义
Noun:
-
the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
双语例句
- 1. Elliott crossed the finish line just half a second behind his adversary.
- 埃利奥特跨过终点线时仅比对手落后半秒钟。
来自柯林斯例句
- 2. She'd half expected him to withdraw from the course.
- 她多少已经预料到他会中途就退出这门课程。
来自柯林斯例句
- 3. The French, who led 21-3 at half time, scored eight tries.
- 上半场以21：3领先的法国队有8个达阵得分。
来自柯林斯例句
- 4. The curtains were half drawn to cut out the sunlight.
- 窗帘拉上了一半以遮挡阳光。
来自柯林斯例句
- 5. From what I hear, half the campus is lusting after her.
- 从我听到的来看，半个学校的人都想和她上床。
来自柯林斯例句
- The time it takes for half of its original amount to decay is called the half-life.
衰变至只剩下原来数目一半所需的时间称为该核素的半衰期。 - It is not necessary to wait until half of a sample has decayed in order to measure the halflife.
不必一直等到样品衰变一半之后才测量它的半衰期。
用作名词 (n.)
用法讲解
- half life time 半衰期
- total half-life 总半衰期
- effective half-life 有效半排出期,有效半...
- radioactive half life 放射半衰期,放射性物...
- biological half life 生物学半排出期,生物...
- physical half life 物理半衰期(放射性物...
- half life 半衰期(半衰变周期...
- biological half-life 生物学半衰期,生物半...
- apparent half life 表现半衰期
- biologic half-life 生物(学)半衰期...
- radioactive half-life 半衰期
- half-life period 半衰期
- antibody half-life 抗体半衰期
- effective half life 有效半排出期,有效半...
- apparent half-life 表观半衰期
相关词汇
- half life 半衰期(半衰变周期...
【近义词】
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