查询词典 half life

Passively acquired immunity in young pig has a half-life of about 9 days.

幼猪的被动免疫力的半衰期约为9天。

The rest, there is a fission reaction products 3.4%, 1% is plutonium, a longer half-life of these actinides.

剩余部分中，有3.4%是裂变反应产物，1%是钚这类半衰期较长的锕系元素。

Transcription termination by actinomycin D was used to detect half-life of VDR mRNAin GHS and control rats.

采用放线菌素D转录终止法测定VDR mRNA的半衰期。

The isotope 232Th has a half-life of 14 billion years and decays to 228Ra by emitting an alpha particle, which is called the alpha decay (the blue arrows show the "direction" of decay).

同位素中232Th的半衰期为14亿年和衰变40.2，82.7，32.4，28.9，94.2，69.3，57.1，71.6，64.0，71.4，692发光的一个粒子，即所谓的衰变(蓝色箭头显示的"方向"的衰变)。

Let us finish with Half-Life 2 where we activate anti-aliasing and anisotropic filtering.

让我们完成半衰期2当我们开启反锯齿和各向异性过滤。

We close this tests series with Half Life 2 tested here with functions filtering and anti-aliasing.

我们结束这一系列的测试，半衰期2测试此功能过滤和反锯齿。

With or without antialiasing, the hierarchy of our cards remains identical under Half-Life 2 Lost Coast.

或无抗锯齿，层次，我们仍然卡完全相同下半衰期2半条命。

One finishes with Half-Life 2 Lost Coast which we test here with antialiasing and anisotropic filtering.

你完成半条命2遗失沿海的考验，我们在这里与抗锯齿和各向异性过滤。

However, because of its short half-life in vivo and antigenicity, its medical efficacy was reduced greatly.

然而由于该酶体内半衰期短且易引发免疫反应而降低了该酶的临床应用效果。

Ca is widely abundant in nature and its rodioisotope 41 Ca is a cosmogenic nuclide with a half\|life of 10 5 years. However, the 41 Ca/ 40 Ca ratio in natural samples is very low and can only be measure d by accelerator mass spectrometry. The application of 41 Ca is ve ry i mportant not only in the life science but also in geological dating, global envi ronment change studies and astrophysics.

1 引言Ca在自然界中广泛存在，它不仅是人体中含量最丰富的元素之一[1] ，也是众多其他物质的组成部分。41Ca(半衰期为 1.0 3× 10 5a)属于Ca的放射性同位素中的一种，其衰变方式为轨道电子俘获，只发射3.3keV的X射线，天然样品中41Ca 40 Ca的值很小。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。