不辐射

Of uncertainty and a perception that there may be unknown or undiscovered hazards.

的研究报告，对於射频辐射可能产生之健康危害作不正确的报导。

The principal cause of the annual variation of the earth rotation speed is the une...

从而得出，太阳辐射光压在南、北半球的不平衡分布是引起地球自转速度年变化的主要原因。

Radiation received by the earth is unequally distributed, as is the energy trabsferred from earth to atmosphere.

地球获得的辐射分布不均匀，地球向大气输送的热也是如此。

From radio-active water and soil around a nuclear-weapons plant in Colorado to man-made deserts in Soviet Central Asia, the world is peppered with examples of what poor education or unneighborly attitudes can do to the planet that must feed and clothe us all.

从科罗拉多地区在辐射强烈的水和泥土中生长出来的植物，到苏维埃的人工沙漠，世界正到处充斥着像低劣教育和不和睦的关系这些让我们接受的事。

Eta Carinae, a star between 100 and 150 more massive than the Sun, is near a point of unstable equilibrium where the star's gravity is almost balanced by the outward pressure of the intense radiation generated in the nuclear furnace.

Eta Carinae，质量是太阳的100到150倍，这是一个不稳定平衡的临界点，也就是恒星的引力通常靠核反应堆所产生的强烈辐射制造的外层气压来平衡的。

Firstly, the integral-differential equation described the radiation field evolution is derived, and then the instability of its solution is also investigated analytically. By using the perturbation and iteration method, the threshold detuning and threshold linear growth rate of the unstable solution are analyzed and discussed in detail.

首先，建立了一个描述辐射场演化的积分一微分方程，解析分析了系统解的不稳定性，并采用线性方程解的微扰迭代方法进一步对系统不稳定解出现的失谐量阈值和线性增长率阈值等作了详细讨论。

A nonlinear evolution equation for the radiation field in magnetically insulated transmission line oscillator is derived and the threshold conditions of the nonlinear unstable solution are studied.

导出了磁绝缘传输线振荡器中辐射场的非线性演化方程，并讨论了在临界值点附近可能出现非线性不稳定解的条件。

The effect is more durable than a drug commonly used to treat these vasomotor symptoms and, ultimately, is more cost-effective for insurance companies, Eleanor Walker, MD, lead author of the study and a radiation oncologist at the Henry Ford Hospital Department of Radiation Oncology in Detroit, said.

效果是不是更持久的药物常用来治疗这些血管舒缩症状，并最终更具成本效益的保险公司，埃莉沃克，医学博士，第一作者的研究和辐射肿瘤的亨利福特医院部放射肿瘤学在底特律说。

Then, a correction item to remove the influence of WIEN's approximation on ALPHA difference spectrum was developed.

以此为基础，在不考虑大气下行辐射影响的条件下，借鉴ALPHA导出发射率法和ASTER TES算法的优点，提出一个新的发射率温度分离算法。

So, the aromaticity of acenaphthenyl groups in C_2 gum should be the least. In order to explain the reason, quantum chemical calculation is utilized. The optimized geometrical structrures of condensed aromatics in C_1 gum, C_2 gum and C_3 gum are calculated at B3LYP/6-31G* levels. We find that some phenyl groups in acenaphthenyl groups are coplanar and have the largest conjugated structure.

为了解释其原因，我们利用量子力学方法进行了计算，研究了三种稠环基团在B3LYP／6-31G*基组水平下优化得到的几何结构，发现苊式多苯基苯基中的萘环和中间的苯环共面，电子离域性最大，而其他二者所有苯环都不共面，发生了明显地扭曲；同时，在优化几何结构的基础上，对三种化合物进行了前线分子轨道的分析，利用密度泛函理论方法(density function theory，DFT)计算了稠环基团的最高占有轨道和最低未占轨道之间的能量差，即能隙，发现C_2胶上苊式多苯基苯基的Eg最小，解释了C_2胶具有最好的辐射保护效果的原因。

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。