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radioactive相关的网络例句

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与 radioactive 相关的网络例句 [注:此内容来源于网络,仅供参考]

"For the invention and development of the cyclotron and for results obtained with it, especially with regard to artificial radioactive elements"

"对回旋加速器的发明和发展,并以此获得有关人工放射性元素的研究成果"

The clinical curative effect , assessment and classification of radioactive lung damnification, negative effects and life quality were observed.

以肿瘤客观疗效、放射性肺损伤的评定及分级、毒副反应情况、生活质量状况为指标进行临床疗效观察。

The decay of ~(99m)Tc source was used to verify experimentally that in the measurement of the number of atoms of a radioactive isotope in a sample at time t_0, the error introduced through the inaccuracy of its decay constant can be reduced to a much smaller value by the careful selection of the time of measurement or measurements of its radioactivity at around one life time (1/λ) after t_0 and doing the calculation.

本文用~(99m)Tc源的衰变实验证明了:在测量一个样品中在t_0时的一种放射性同位素的原子数时只需精心选择一次或多次测量其放射性的时刻在t_0后约该同位素的一个寿期(1/λ),并进行计算,则由它的衰变常数或其半衰期(T1/2)的不准确性而引进的误差可以被降低到较小值。

The core of this model is a function called a stretched exponential relaxation, which is similar to the decay curve of a radioactive material.

这个模型的核心是延伸型指数函数的松弛效应,就像放射性物质的衰变曲线一样。

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。

A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.

一种极不稳定的放射性元素,铀和钍腐烂的产物。

A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

a。 最多的;多数的,大部分的ad。最,最多;很,十分n。大多数,大部分a。最多的;多数的,大部分的

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。

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推荐网络例句

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。

I think we have to be very careful in answering these questions, because nothing is really so simple.

我认为,我们在回答这些问题的时候应该非常谨慎,因为事情远没有那么简单。