查询词典 radioactive decay

"Beta particle:a high-speed electron or positron, especially one emit ted in radioactive decay."

粒子：一种高速电子或质子，主要在放射衰变中释放出。

It is major work to present the tectonic time duration system of the strain rate method, which is an original exploration.(1) Principle: Its basis is the stress and strain rule depending on strain capacity in steady-state stress field, but not the radioactive decay law depending on radiation dose in invariable radiation field. This can be simplified as a process of differential stress-strain rate-strain capacity-time duration calculating.

工作重点是梳理出应变速率法构造时限定年系统，属原创性探索：①原理：不是基于放射性核素衰变规律，而是基于应力应变规律；不取决于恒定辐射场的辐射剂量，而取决于稳态应变场的应变量，可简括为差异应力-应变速率-应变值量-计算时限的求索过程。

It is the product of radioactive decay and is used in helium dating.

氦是由放射性衰变形成的，可用于氦年代测定法。

Radium does not occur free in nature but occurs in natural ores such as pitchblende as a disintegration product of radioactive decay of heavier elements, including uranium.

在自然界镭不存在游离状态，但存在于天然矿石中，如沥青铀矿，是更重元素放射性衰变的产物。

Radium does not occur free in nature but occurs in natural ore s such as pitchblende as a disintegration product of radioactive decay of heavier elements, including uranium.

在自然界镭不存在游离状态，但存在于天然矿石中，如沥青铀矿，是更重元素放射性衰变的产物。

Radioisotope means the nuclide in a certain element with radioactive decay, which has the same ordinal number of atoms but different mass.

放射性同位素，是指某种发生放射性衰变的元素中具有相同原子序数但质量不同的核素。

A radioactive decay series; the paraffin alkane series.

放射性蜕变的系列；链烷烃系列。

The point of the experiment is that radioactive decay is a quantum process.

这个实验的关键点是放射性衰变是一个量子过程。

The point of the experiment is that radioactive decay is a quantum proces s.

这项实验的关键因素在于放射性衰变是一个量子过程。

Radioactive decay of radium-226, found in a wide variety of rocks and soil.

这种氡可以在很多种类的石头和土壤中找到。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。